308401356 has 12 divisors (see below), whose sum is σ = 719603192. Its totient is φ = 102800448.

The previous prime is 308401349. The next prime is 308401367. The reversal of 308401356 is 653104803.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×308401356² = 190222792765277472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12850045 + ... + 12850068.

Almost surely, 2^308401356 is an apocalyptic number.

It is an amenable number.

308401356 is an abundant number, since it is smaller than the sum of its proper divisors (411201836).

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

308401356 is a wasteful number, since it uses less digits than its factorization.

308401356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25700120 (or 25700118 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 308401356 is about 17561.3597423434. The cubic root of 308401356 is about 675.6245566439.

The spelling of 308401356 in words is "three hundred eight million, four hundred one thousand, three hundred fifty-six".