402463144 has 32 divisors (see below), whose sum is σ = 773989920. Its totient is φ = 196088256.

The previous prime is 402463133. The next prime is 402463157. The reversal of 402463144 is 441364204.

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 7 ways as a sum of consecutive naturals, for example, 178794 + ... + 181030.

It is an arithmetic number, because the mean of its divisors is an integer number (24187185).

Almost surely, 2^402463144 is an apocalyptic number.

It is an amenable number.

402463144 is a deficient number, since it is larger than the sum of its proper divisors (371526776).

402463144 is a wasteful number, since it uses less digits than its factorization.

402463144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2809 (or 2805 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 402463144 is about 20061.4840926587. The cubic root of 402463144 is about 738.3155893034.

The spelling of 402463144 in words is "four hundred two million, four hundred sixty-three thousand, one hundred forty-four".