399315348 has 36 divisors (see below), whose sum is σ = 1015035840. Its totient is φ = 132359376.

The previous prime is 399315307. The next prime is 399315349. The reversal of 399315348 is 843513993.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×399315348² = 318905494296722208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399315349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24540 + ... + 37427.

It is an arithmetic number, because the mean of its divisors is an integer number (28195440).

Almost surely, 2^399315348 is an apocalyptic number.

It is an amenable number.

399315348 is an abundant number, since it is smaller than the sum of its proper divisors (615720492).

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

399315348 is a wasteful number, since it uses less digits than its factorization.

399315348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62156 (or 62151 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 399315348 is about 19982.8763695320. The cubic root of 399315348 is about 736.3856797325.

The spelling of 399315348 in words is "three hundred ninety-nine million, three hundred fifteen thousand, three hundred forty-eight".