32130404 has 12 divisors (see below), whose sum is σ = 56267904. Its totient is φ = 16053864.

The previous prime is 32130367. The next prime is 32130407. The reversal of 32130404 is 40403123.

It is a super-2 number, since 2×32130404² = 2064725722406432, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 9617 + ... + 12519.

It is an arithmetic number, because the mean of its divisors is an integer number (4688992).

Almost surely, 2^32130404 is an apocalyptic number.

It is an amenable number.

32130404 is a deficient number, since it is larger than the sum of its proper divisors (24137500).

32130404 is a wasteful number, since it uses less digits than its factorization.

32130404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5674 (or 5672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 32130404 is about 5668.3687247744. The cubic root of 32130404 is about 317.9108830881.

Adding to 32130404 its reverse (40403123), we get a palindrome (72533527).

The spelling of 32130404 in words is "thirty-two million, one hundred thirty thousand, four hundred four".