12749190 has 32 divisors (see below), whose sum is σ = 32209920. Its totient is φ = 3220704.

The previous prime is 12749189. The next prime is 12749197. The reversal of 12749190 is 9194721.

It is a super-2 number, since 2×12749190² = 325083691312200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12749197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10614 + ... + 11753.

It is an arithmetic number, because the mean of its divisors is an integer number (1006560).

Almost surely, 2^12749190 is an apocalyptic number.

12749190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12749190 is an abundant number, since it is smaller than the sum of its proper divisors (19460730).

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

12749190 is a wasteful number, since it uses less digits than its factorization.

12749190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22396.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 12749190 is about 3570.6007897831. The cubic root of 12749190 is about 233.6114891414.

The spelling of 12749190 in words is "twelve million, seven hundred forty-nine thousand, one hundred ninety".