397090496683872 has 336 divisors, whose sum is σ = 1242582687676512. Its totient is φ = 124425570078720.

The previous prime is 397090496683847. The next prime is 397090496683877. The reversal of 397090496683872 is 278386694090793.

397090496683872 is a `hidden beast` number, since 3 + 9 + 7 + 0 + 90 + 4 + 96 + 68 + 387 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a junction number, because it is equal to n+sod(n) for n = 397090496683791 and 397090496683800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397090496683877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 324979093 + ... + 326198699.

It is an arithmetic number, because the mean of its divisors is an integer number (3698162760942).

Almost surely, 2^{397090496683872} is an apocalyptic number.

397090496683872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397090496683872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621291343838256).

397090496683872 is an abundant number, since it is smaller than the sum of its proper divisors (845492190992640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397090496683872 is a wasteful number, since it uses less digits than its factorization.

397090496683872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220473 (or 1220450 counting only the distinct ones).

The product of its (nonzero) digits is 5925685248, while the sum is 81.

The spelling of 397090496683872 in words is "three hundred ninety-seven trillion, ninety billion, four hundred ninety-six million, six hundred eighty-three thousand, eight hundred seventy-two".