402422532 has 24 divisors (see below), whose sum is σ = 969276672. Its totient is φ = 129813600.

The previous prime is 402422519. The next prime is 402422561. The reversal of 402422532 is 235224204.

It is a happy number.

It is a super-2 number, since 2×402422532² = 323887788522582048, which contains 22 as substring.

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, 540519 + ... + 541262.

It is an arithmetic number, because the mean of its divisors is an integer number (40386528).

Almost surely, 2^402422532 is an apocalyptic number.

It is an amenable number.

402422532 is an abundant number, since it is smaller than the sum of its proper divisors (566854140).

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

402422532 is a wasteful number, since it uses less digits than its factorization.

402422532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1081819 (or 1081817 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 402422532 is about 20060.4718787969. The cubic root of 402422532 is about 738.2907543326.

Adding to 402422532 its reverse (235224204), we get a palindrome (637646736).

The spelling of 402422532 in words is "four hundred two million, four hundred twenty-two thousand, five hundred thirty-two".