12749200 has 30 divisors (see below), whose sum is σ = 30630914. Its totient is φ = 5099520.

The previous prime is 12749197. The next prime is 12749239. The reversal of 12749200 is 294721.

It can be written as a sum of positive squares in 3 ways, for example, as 132496 + 12616704 = 364^2 + 3552^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15537 + ... + 16336.

Almost surely, 2^12749200 is an apocalyptic number.

12749200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12749200 is an abundant number, since it is smaller than the sum of its proper divisors (17881714).

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

12749200 is a wasteful number, since it uses less digits than its factorization.

12749200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31891 (or 31880 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12749200 is about 3570.6021901074. The cubic root of 12749200 is about 233.6115502202.

The spelling of 12749200 in words is "twelve million, seven hundred forty-nine thousand, two hundred".