399180470 has 16 divisors (see below), whose sum is σ = 773796240. Its totient is φ = 147389664.

The previous prime is 399180461. The next prime is 399180499. The reversal of 399180470 is 74081993.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535180 + ... + 1535439.

It is an arithmetic number, because the mean of its divisors is an integer number (48362265).

Almost surely, 2^399180470 is an apocalyptic number.

399180470 is a deficient number, since it is larger than the sum of its proper divisors (374615770).

399180470 is a wasteful number, since it uses less digits than its factorization.

399180470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070639.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 399180470 is about 19979.5012450261. The cubic root of 399180470 is about 736.3027599607.

The spelling of 399180470 in words is "three hundred ninety-nine million, one hundred eighty thousand, four hundred seventy".