397692036 has 180 divisors, whose sum is σ = 1211242032. Its totient is φ = 109946592.

The previous prime is 397692023. The next prime is 397692041. The reversal of 397692036 is 630296793.

It is a junction number, because it is equal to n+sod(n) for n = 397691982 and 397692000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 3716695 + ... + 3716801.

Almost surely, 2^397692036 is an apocalyptic number.

397692036 is a gapful number since it is divisible by the number (36) 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 397692036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (605621016).

397692036 is an abundant number, since it is smaller than the sum of its proper divisors (813549996).

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

397692036 is a wasteful number, since it uses less digits than its factorization.

397692036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 162 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 45.

The square root of 397692036 is about 19942.2174293633. The cubic root of 397692036 is about 735.3864634284.

The spelling of 397692036 in words is "three hundred ninety-seven million, six hundred ninety-two thousand, thirty-six".