32130400 has 36 divisors (see below), whose sum is σ = 78440292. Its totient is φ = 12851840.

The previous prime is 32130367. The next prime is 32130407. The reversal of 32130400 is 403123.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19282 + ... + 20881.

It is an arithmetic number, because the mean of its divisors is an integer number (2178897).

Almost surely, 2^32130400 is an apocalyptic number.

It is an amenable number.

32130400 is an abundant number, since it is smaller than the sum of its proper divisors (46309892).

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

32130400 is a wasteful number, since it uses less digits than its factorization.

32130400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40183 (or 40170 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 32130400 is about 5668.3683719391. The cubic root of 32130400 is about 317.9108698956.

Adding to 32130400 its reverse (403123), we get a palindrome (32533523).

The spelling of 32130400 in words is "thirty-two million, one hundred thirty thousand, four hundred".