396908830 has 8 divisors (see below), whose sum is σ = 714435912. Its totient is φ = 158763528.

The previous prime is 396908821. The next prime is 396908833. The reversal of 396908830 is 38809693.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396908833) 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, 19845432 + ... + 19845451.

It is an arithmetic number, because the mean of its divisors is an integer number (89304489).

Almost surely, 2^396908830 is an apocalyptic number.

396908830 is a deficient number, since it is larger than the sum of its proper divisors (317527082).

396908830 is a wasteful number, since it uses less digits than its factorization.

396908830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39690890.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 396908830 is about 19922.5708682389. The cubic root of 396908830 is about 734.9033948340.

It can be divided in two parts, 396 and 908830, that added together give a triangular number (909226 = T₁₃₄₈).

The spelling of 396908830 in words is "three hundred ninety-six million, nine hundred eight thousand, eight hundred thirty".