402616406 has 16 divisors (see below), whose sum is σ = 660078720. Its totient is φ = 183354240.

The previous prime is 402616397. The next prime is 402616421. The reversal of 402616406 is 604616204.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 189941 + ... + 192048.

It is an arithmetic number, because the mean of its divisors is an integer number (41254920).

Almost surely, 2^402616406 is an apocalyptic number.

402616406 is a deficient number, since it is larger than the sum of its proper divisors (257462314).

402616406 is a wasteful number, since it uses less digits than its factorization.

402616406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382039.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 402616406 is about 20065.3035362040. The cubic root of 402616406 is about 738.4092967355.

The spelling of 402616406 in words is "four hundred two million, six hundred sixteen thousand, four hundred six".