397440143496 has 96 divisors (see below), whose sum is σ = 1196410849920. Its totient is φ = 118164009600.

The previous prime is 397440143483. The next prime is 397440143557. The reversal of 397440143496 is 694341044793.

397440143496 is a `hidden beast` number, since 3 + 9 + 7 + 4 + 4 + 0 + 143 + 496 = 666.

It is a super-2 number, since 2×397440143496² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4692160 + ... + 4776111.

It is an arithmetic number, because the mean of its divisors is an integer number (12462613020).

Almost surely, 2^397440143496 is an apocalyptic number.

397440143496 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

397440143496 is an abundant number, since it is smaller than the sum of its proper divisors (798970706424).

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

397440143496 is a wasteful number, since it uses less digits than its factorization.

397440143496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9468347 (or 9468340 counting only the distinct ones).

The product of its (nonzero) digits is 7838208, while the sum is 54.

The spelling of 397440143496 in words is "three hundred ninety-seven billion, four hundred forty million, one hundred forty-three thousand, four hundred ninety-six".