397614440 has 16 divisors (see below), whose sum is σ = 894632580. Its totient is φ = 159045760.

The previous prime is 397614439. The next prime is 397614449. The reversal of 397614440 is 44416793.

It can be written as a sum of positive squares in 2 ways, for example, as 358950916 + 38663524 = 18946^2 + 6218^2 .

It is a junction number, because it is equal to n+sod(n) for n = 397614394 and 397614403.

It is not an unprimeable number, because it can be changed into a prime (397614449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4970141 + ... + 4970220.

Almost surely, 2^397614440 is an apocalyptic number.

It is an amenable number.

397614440 is an abundant number, since it is smaller than the sum of its proper divisors (497018140).

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

397614440 is a wasteful number, since it uses less digits than its factorization.

397614440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9940372 (or 9940368 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 397614440 is about 19940.2718135937. The cubic root of 397614440 is about 735.3386318111.

The spelling of 397614440 in words is "three hundred ninety-seven million, six hundred fourteen thousand, four hundred forty".