399285459 has 6 divisors (see below), whose sum is σ = 576745676. Its totient is φ = 266190300.

The previous prime is 399285431. The next prime is 399285461. The reversal of 399285459 is 954582993.

It is a happy number.

399285459 is a `hidden beast` number, since 3 + 9 + 92 + 8 + 545 + 9 = 666.

It is not a de Polignac number, because 399285459 - 2¹⁵ = 399252691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (399285479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22182517 + ... + 22182534.

Almost surely, 2^399285459 is an apocalyptic number.

399285459 is a deficient number, since it is larger than the sum of its proper divisors (177460217).

399285459 is a wasteful number, since it uses less digits than its factorization.

399285459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44365057 (or 44365054 counting only the distinct ones).

The product of its digits is 3499200, while the sum is 54.

The square root of 399285459 is about 19982.1284902285. The cubic root of 399285459 is about 736.3673063000.

The spelling of 399285459 in words is "three hundred ninety-nine million, two hundred eighty-five thousand, four hundred fifty-nine".