399848499 has 24 divisors (see below), whose sum is σ = 589241952. Its totient is φ = 261219840.

The previous prime is 399848459. The next prime is 399848507. The reversal of 399848499 is 994848993.

399848499 is a `hidden beast` number, since 399 + 84 + 84 + 99 = 666.

It is not a de Polignac number, because 399848499 - 2⁸ = 399848243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (399848459) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108739 + ... + 112355.

It is an arithmetic number, because the mean of its divisors is an integer number (24551748).

Almost surely, 2^399848499 is an apocalyptic number.

399848499 is a deficient number, since it is larger than the sum of its proper divisors (189393453).

399848499 is a wasteful number, since it uses less digits than its factorization.

399848499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867 (or 3864 counting only the distinct ones).

The product of its digits is 20155392, while the sum is 63.

The square root of 399848499 is about 19996.2121162984. The cubic root of 399848499 is about 736.7132655721.

The spelling of 399848499 in words is "three hundred ninety-nine million, eight hundred forty-eight thousand, four hundred ninety-nine".