402332132 has 12 divisors (see below), whose sum is σ = 745497900. Its totient is φ = 189332736.

The previous prime is 402332131. The next prime is 402332137. The reversal of 402332132 is 231233204.

It can be written as a sum of positive squares in 2 ways, for example, as 375041956 + 27290176 = 19366^2 + 5224^2 .

It is a super-2 number, since 2×402332132² = 323742288879330848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402332131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958257 + ... + 2958392.

It is an arithmetic number, because the mean of its divisors is an integer number (62124825).

Almost surely, 2^402332132 is an apocalyptic number.

It is an amenable number.

402332132 is a deficient number, since it is larger than the sum of its proper divisors (343165768).

402332132 is a wasteful number, since it uses less digits than its factorization.

402332132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5916670 (or 5916668 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 402332132 is about 20058.2185649673. The cubic root of 402332132 is about 738.2354671016.

Adding to 402332132 its reverse (231233204), we get a palindrome (633565336).

The spelling of 402332132 in words is "four hundred two million, three hundred thirty-two thousand, one hundred thirty-two".