399085498 has 12 divisors (see below), whose sum is σ = 696363642. Its totient is φ = 171036600.

The previous prime is 399085493. The next prime is 399085529. The reversal of 399085498 is 894580993.

It can be written as a sum of positive squares in only one way, i.e., 394936129 + 4149369 = 19873^2 + 2037^2 .

It is not an unprimeable number, because it can be changed into a prime (399085493) 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, 2036053 + ... + 2036248.

Almost surely, 2^399085498 is an apocalyptic number.

399085498 is a deficient number, since it is larger than the sum of its proper divisors (297278144).

399085498 is a wasteful number, since it uses less digits than its factorization.

399085498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072317 (or 4072310 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 399085498 is about 19977.1243676361. The cubic root of 399085498 is about 736.2443622372.

The spelling of 399085498 in words is "three hundred ninety-nine million, eighty-five thousand, four hundred ninety-eight".