402476490 has 48 divisors (see below), whose sum is σ = 1126937448. Its totient is φ = 99070848.

The previous prime is 402476489. The next prime is 402476497. The reversal of 402476490 is 94674204.

402476490 is a `hidden beast` number, since 4 + 0 + 2 + 4 + 7 + 649 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 311063769 + 91412721 = 17637^2 + 9561^2 .

It is not an unprimeable number, because it can be changed into a prime (402476497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 170829 + ... + 173168.

Almost surely, 2^402476490 is an apocalyptic number.

402476490 is an abundant number, since it is smaller than the sum of its proper divisors (724460958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

402476490 is a wasteful number, since it uses less digits than its factorization.

402476490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344023 (or 344020 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 36.

The square root of 402476490 is about 20061.8167173364. The cubic root of 402476490 is about 738.3237502585.

The spelling of 402476490 in words is "four hundred two million, four hundred seventy-six thousand, four hundred ninety".