397939424016 has 80 divisors (see below), whose sum is σ = 1092201076800. Its totient is φ = 124611024384.

The previous prime is 397939423993. The next prime is 397939424023. The reversal of 397939424016 is 610424939793.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3811686 + ... + 3914693.

It is an arithmetic number, because the mean of its divisors is an integer number (13652513460).

Almost surely, 2^397939424016 is an apocalyptic number.

It is an amenable number.

397939424016 is an abundant number, since it is smaller than the sum of its proper divisors (694261652784).

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

397939424016 is a wasteful number, since it uses less digits than its factorization.

397939424016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726456 (or 7726450 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 57.

The spelling of 397939424016 in words is "three hundred ninety-seven billion, nine hundred thirty-nine million, four hundred twenty-four thousand, sixteen".