12549402 has 36 divisors (see below), whose sum is σ = 28194270. Its totient is φ = 4034016.

The previous prime is 12549391. The next prime is 12549413. The reversal of 12549402 is 20494521.

12549402 is a `hidden beast` number, since 1 + 254 + 9 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (12549391) and next prime (12549413).

It can be written as a sum of positive squares in 3 ways, for example, as 11229201 + 1320201 = 3351^2 + 1149^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 14724 + ... + 15552.

Almost surely, 2^12549402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12549402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14097135).

12549402 is an abundant number, since it is smaller than the sum of its proper divisors (15644868).

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

12549402 is a wasteful number, since it uses less digits than its factorization.

12549402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 12549402 is about 3542.5135144414. The cubic root of 12549402 is about 232.3847781491.

The spelling of 12549402 in words is "twelve million, five hundred forty-nine thousand, four hundred two".