13650642 has 24 divisors (see below), whose sum is σ = 29912220. Its totient is φ = 4498560.

The previous prime is 13650631. The next prime is 13650667. The reversal of 13650642 is 24605631.

13650642 is a `hidden beast` number, since 1 + 3 + 650 + 6 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13242321 + 408321 = 3639^2 + 639^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2659 + ... + 5862.

Almost surely, 2^13650642 is an apocalyptic number.

13650642 is an abundant number, since it is smaller than the sum of its proper divisors (16261578).

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

13650642 is a wasteful number, since it uses less digits than its factorization.

13650642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8618 (or 8615 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 13650642 is about 3694.6775231406. The cubic root of 13650642 is about 238.9925477506.

The spelling of 13650642 in words is "thirteen million, six hundred fifty thousand, six hundred forty-two".