396695240 has 16 divisors (see below), whose sum is σ = 892564380. Its totient is φ = 158678080.

The previous prime is 396695239. The next prime is 396695267. The reversal of 396695240 is 42596693.

It can be written as a sum of positive squares in 2 ways, for example, as 365803876 + 30891364 = 19126^2 + 5558^2 .

It is a super-2 number, since 2×396695240² = 314734226877315200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 396695191 and 396695200.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4958651 + ... + 4958730.

Almost surely, 2^396695240 is an apocalyptic number.

It is an amenable number.

396695240 is an abundant number, since it is smaller than the sum of its proper divisors (495869140).

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

396695240 is a wasteful number, since it uses less digits than its factorization.

396695240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9917392 (or 9917388 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 396695240 is about 19917.2096439235. The cubic root of 396695240 is about 734.7715457634.

The spelling of 396695240 in words is "three hundred ninety-six million, six hundred ninety-five thousand, two hundred forty".