399022315 has 8 divisors (see below), whose sum is σ = 479589408. Its totient is φ = 318709440.

The previous prime is 399022313. The next prime is 399022321. The reversal of 399022315 is 513220993.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 399022315 - 2¹ = 399022313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399022313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60082 + ... + 66391.

It is an arithmetic number, because the mean of its divisors is an integer number (59948676).

Almost surely, 2^399022315 is an apocalyptic number.

399022315 is a deficient number, since it is larger than the sum of its proper divisors (80567093).

399022315 is a wasteful number, since it uses less digits than its factorization.

399022315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127109.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 399022315 is about 19975.5429212825. The cubic root of 399022315 is about 736.2055062503.

The spelling of 399022315 in words is "three hundred ninety-nine million, twenty-two thousand, three hundred fifteen".