397252118448 has 160 divisors (see below), whose sum is σ = 1180485604800. Its totient is φ = 127753113600.

The previous prime is 397252118411. The next prime is 397252118467. The reversal of 397252118448 is 844811252793.

397252118448 is a `hidden beast` number, since 3 + 9 + 72 + 521 + 1 + 8 + 4 + 48 = 666.

It is a super-2 number, since 2×397252118448² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 397252118394 and 397252118403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17289688 + ... + 17312648.

It is an arithmetic number, because the mean of its divisors is an integer number (7378035030).

Almost surely, 2^397252118448 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397252118448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590242802400).

397252118448 is an abundant number, since it is smaller than the sum of its proper divisors (783233486352).

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

397252118448 is a wasteful number, since it uses less digits than its factorization.

397252118448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24388 (or 24376 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The spelling of 397252118448 in words is "three hundred ninety-seven billion, two hundred fifty-two million, one hundred eighteen thousand, four hundred forty-eight".