399180353 has 16 divisors (see below), whose sum is σ = 478953216. Its totient is φ = 327843840.

The previous prime is 399180347. The next prime is 399180377. The reversal of 399180353 is 353081993.

It is a cyclic number.

It is not a de Polignac number, because 399180353 - 2²⁰ = 398131777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 399180353.

It is not an unprimeable number, because it can be changed into a prime (399180323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22976 + ... + 36417.

It is an arithmetic number, because the mean of its divisors is an integer number (29934576).

Almost surely, 2^399180353 is an apocalyptic number.

It is an amenable number.

399180353 is a deficient number, since it is larger than the sum of its proper divisors (79772863).

399180353 is a wasteful number, since it uses less digits than its factorization.

399180353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59464.

The product of its (nonzero) digits is 87480, while the sum is 41.

The square root of 399180353 is about 19979.4983170249. The cubic root of 399180353 is about 736.3026880238.

The spelling of 399180353 in words is "three hundred ninety-nine million, one hundred eighty thousand, three hundred fifty-three".