397950962850 has 240 divisors, whose sum is σ = 1271440640448. Its totient is φ = 90401132160.

The previous prime is 397950962831. The next prime is 397950962863. The reversal of 397950962850 is 58269059793.

397950962850 is a `hidden beast` number, since 3 + 9 + 79 + 509 + 6 + 2 + 8 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 4577992 + ... + 4664108.

Almost surely, 2^397950962850 is an apocalyptic number.

397950962850 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 397950962850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (635720320224).

397950962850 is an abundant number, since it is smaller than the sum of its proper divisors (873489677598).

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

397950962850 is a wasteful number, since it uses less digits than its factorization.

397950962850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86311 (or 86297 counting only the distinct ones).

The product of its (nonzero) digits is 36741600, while the sum is 63.

The spelling of 397950962850 in words is "three hundred ninety-seven billion, nine hundred fifty million, nine hundred sixty-two thousand, eight hundred fifty".