402134506 has 24 divisors (see below), whose sum is σ = 641360160. Its totient is φ = 189067176.

The previous prime is 402134489. The next prime is 402134567. The reversal of 402134506 is 605431204.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 98355 + ... + 102361.

It is an arithmetic number, because the mean of its divisors is an integer number (26723340).

Almost surely, 2^402134506 is an apocalyptic number.

402134506 is a deficient number, since it is larger than the sum of its proper divisors (239225654).

402134506 is a wasteful number, since it uses less digits than its factorization.

402134506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4186 (or 4167 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 402134506 is about 20053.2916500010. The cubic root of 402134506 is about 738.1145732719.

The spelling of 402134506 in words is "four hundred two million, one hundred thirty-four thousand, five hundred six".