397949016000 has 448 divisors, whose sum is σ = 1346587721856. Its totient is φ = 103514112000.

The previous prime is 397949015993. The next prime is 397949016029. The reversal of 397949016000 is 610949793.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 245495190 + ... + 245496810.

Almost surely, 2^397949016000 is an apocalyptic number.

397949016000 is a gapful number since it is divisible by the number (30) 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 397949016000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (673293860928).

397949016000 is an abundant number, since it is smaller than the sum of its proper divisors (948638705856).

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

397949016000 is a wasteful number, since it uses less digits than its factorization.

397949016000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1897 (or 1877 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 48.

The spelling of 397949016000 in words is "three hundred ninety-seven billion, nine hundred forty-nine million, sixteen thousand".