402341664 has 48 divisors (see below), whose sum is σ = 1071040320. Its totient is φ = 132222720.

The previous prime is 402341659. The next prime is 402341671. The reversal of 402341664 is 466143204.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22699 + ... + 36330.

It is an arithmetic number, because the mean of its divisors is an integer number (22313340).

Almost surely, 2^402341664 is an apocalyptic number.

It is an amenable number.

402341664 is an abundant number, since it is smaller than the sum of its proper divisors (668698656).

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

402341664 is a wasteful number, since it uses less digits than its factorization.

402341664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59113 (or 59105 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

The square root of 402341664 is about 20058.4561718992. The cubic root of 402341664 is about 738.2412971148.

Adding to 402341664 its reverse (466143204), we get a palindrome (868484868).

The spelling of 402341664 in words is "four hundred two million, three hundred forty-one thousand, six hundred sixty-four".