12749508 has 24 divisors (see below), whose sum is σ = 33054560. Its totient is φ = 4249800.

The previous prime is 12749501. The next prime is 12749509. The reversal of 12749508 is 80594721.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12749501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58918 + ... + 59133.

Almost surely, 2^12749508 is an apocalyptic number.

12749508 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12749508 is an abundant number, since it is smaller than the sum of its proper divisors (20305052).

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

12749508 is a wasteful number, since it uses less digits than its factorization.

12749508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118064 (or 118056 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12749508 is about 3570.6453198267. The cubic root of 12749508 is about 233.6134314304.

The spelling of 12749508 in words is "twelve million, seven hundred forty-nine thousand, five hundred eight".