12632578 has 16 divisors (see below), whose sum is σ = 21746304. Its totient is φ = 5391360.

The previous prime is 12632569. The next prime is 12632591. The reversal of 12632578 is 87523621.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843 + ... + 5353.

It is an arithmetic number, because the mean of its divisors is an integer number (1359144).

Almost surely, 2^12632578 is an apocalyptic number.

12632578 is a deficient number, since it is larger than the sum of its proper divisors (9113726).

12632578 is a wasteful number, since it uses less digits than its factorization.

12632578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777.

The product of its digits is 20160, while the sum is 34.

The square root of 12632578 is about 3554.2338133556. The cubic root of 12632578 is about 232.8970546106.

The spelling of 12632578 in words is "twelve million, six hundred thirty-two thousand, five hundred seventy-eight".