399159702 has 12 divisors (see below), whose sum is σ = 864846060. Its totient is φ = 133053228.

The previous prime is 399159697. The next prime is 399159703. The reversal of 399159702 is 207951993.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399159703) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11087752 + ... + 11087787.

It is an arithmetic number, because the mean of its divisors is an integer number (72070505).

Almost surely, 2^399159702 is an apocalyptic number.

399159702 is an abundant number, since it is smaller than the sum of its proper divisors (465686358).

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

399159702 is a wasteful number, since it uses less digits than its factorization.

399159702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22175547 (or 22175544 counting only the distinct ones).

The product of its (nonzero) digits is 153090, while the sum is 45.

The square root of 399159702 is about 19978.9815055723. The cubic root of 399159702 is about 736.2899906312.

The spelling of 399159702 in words is "three hundred ninety-nine million, one hundred fifty-nine thousand, seven hundred two".