402904899 has 12 divisors (see below), whose sum is σ = 612604200. Its totient is φ = 254466144.

The previous prime is 402904897. The next prime is 402904903. The reversal of 402904899 is 998409204.

It is not a de Polignac number, because 402904899 - 2¹ = 402904897 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (402904891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1177914 + ... + 1178255.

It is an arithmetic number, because the mean of its divisors is an integer number (51050350).

Almost surely, 2^402904899 is an apocalyptic number.

402904899 is a deficient number, since it is larger than the sum of its proper divisors (209699301).

402904899 is a wasteful number, since it uses less digits than its factorization.

402904899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356194 (or 2356191 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 402904899 is about 20072.4911010069. The cubic root of 402904899 is about 738.5856225959.

The spelling of 402904899 in words is "four hundred two million, nine hundred four thousand, eight hundred ninety-nine".