396632408 has 8 divisors (see below), whose sum is σ = 743685780. Its totient is φ = 198316200.

The previous prime is 396632407. The next prime is 396632413. The reversal of 396632408 is 804236693.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396632407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24789518 + ... + 24789533.

Almost surely, 2^396632408 is an apocalyptic number.

It is an amenable number.

396632408 is a deficient number, since it is larger than the sum of its proper divisors (347053372).

396632408 is a wasteful number, since it uses less digits than its factorization.

396632408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49579057 (or 49579053 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 396632408 is about 19915.6322520778. The cubic root of 396632408 is about 734.7327505718.

The spelling of 396632408 in words is "three hundred ninety-six million, six hundred thirty-two thousand, four hundred eight".