32130402 has 48 divisors (see below), whose sum is σ = 68802048. Its totient is φ = 9998560.

The previous prime is 32130367. The next prime is 32130407. The reversal of 32130402 is 20403123.

It is not an unprimeable number, because it can be changed into a prime (32130407) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168127 + ... + 168317.

It is an arithmetic number, because the mean of its divisors is an integer number (1433376).

Almost surely, 2^32130402 is an apocalyptic number.

32130402 is an abundant number, since it is smaller than the sum of its proper divisors (36671646).

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

32130402 is a wasteful number, since it uses less digits than its factorization.

32130402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 272 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 32130402 is about 5668.3685483567. The cubic root of 32130402 is about 317.9108764919.

Adding to 32130402 its reverse (20403123), we get a palindrome (52533525).

The spelling of 32130402 in words is "thirty-two million, one hundred thirty thousand, four hundred two".