12693290 has 32 divisors (see below), whose sum is σ = 23639040. Its totient is φ = 4904704.

The previous prime is 12693277. The next prime is 12693367. The reversal of 12693290 is 9239621.

12693290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12693290² = 322239222048200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52991 + ... + 53229.

It is an arithmetic number, because the mean of its divisors is an integer number (738720).

Almost surely, 2^12693290 is an apocalyptic number.

12693290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12693290 is a deficient number, since it is larger than the sum of its proper divisors (10945750).

12693290 is a wasteful number, since it uses less digits than its factorization.

12693290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 12693290 is about 3562.7643761551. The cubic root of 12693290 is about 233.2695585343.

The spelling of 12693290 in words is "twelve million, six hundred ninety-three thousand, two hundred ninety".