402401662 has 32 divisors (see below), whose sum is σ = 690917472. Its totient is φ = 174127104.

The previous prime is 402401647. The next prime is 402401683. The reversal of 402401662 is 266104204.

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 15 ways as a sum of consecutive naturals, for example, 123478 + ... + 126694.

It is an arithmetic number, because the mean of its divisors is an integer number (21591171).

Almost surely, 2^402401662 is an apocalyptic number.

402401662 is a deficient number, since it is larger than the sum of its proper divisors (288515810).

402401662 is a wasteful number, since it uses less digits than its factorization.

402401662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3532.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 402401662 is about 20059.9516948571. The cubic root of 402401662 is about 738.2779913010.

Adding to 402401662 its reverse (266104204), we get a palindrome (668505866).

The spelling of 402401662 in words is "four hundred two million, four hundred one thousand, six hundred sixty-two".