402332464 has 20 divisors (see below), whose sum is σ = 789388960. Its totient is φ = 198619200.

The previous prime is 402332461. The next prime is 402332507. The reversal of 402332464 is 464233204.

It is a super-2 number, since 2×402332464² = 323742823176622592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402332461) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 157887 + ... + 160414.

It is an arithmetic number, because the mean of its divisors is an integer number (39469448).

Almost surely, 2^402332464 is an apocalyptic number.

It is an amenable number.

402332464 is a deficient number, since it is larger than the sum of its proper divisors (387056496).

402332464 is a wasteful number, since it uses less digits than its factorization.

402332464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318388 (or 318382 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

The square root of 402332464 is about 20058.2268408750. The cubic root of 402332464 is about 738.2356701628.

Adding to 402332464 its reverse (464233204), we get a palindrome (866565668).

The spelling of 402332464 in words is "four hundred two million, three hundred thirty-two thousand, four hundred sixty-four".