12632390 has 8 divisors (see below), whose sum is σ = 22738320. Its totient is φ = 5052952.

The previous prime is 12632357. The next prime is 12632401. The reversal of 12632390 is 9323621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×12632390² = 319154554224200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631610 + ... + 631629.

It is an arithmetic number, because the mean of its divisors is an integer number (2842290).

Almost surely, 2^12632390 is an apocalyptic number.

12632390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12632390 is a deficient number, since it is larger than the sum of its proper divisors (10105930).

12632390 is a wasteful number, since it uses less digits than its factorization.

12632390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263246.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 12632390 is about 3554.2073659256. The cubic root of 12632390 is about 232.8958992681.

The spelling of 12632390 in words is "twelve million, six hundred thirty-two thousand, three hundred ninety".