20007136 has 24 divisors (see below), whose sum is σ = 40060440. Its totient is φ = 9833088.

The previous prime is 20007107. The next prime is 20007149. The reversal of 20007136 is 63170002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3411 + ... + 7186.

It is an arithmetic number, because the mean of its divisors is an integer number (1669185).

Almost surely, 2^20007136 is an apocalyptic number.

It is an amenable number.

20007136 is an abundant number, since it is smaller than the sum of its proper divisors (20053304).

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

20007136 is a wasteful number, since it uses less digits than its factorization.

20007136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10666 (or 10658 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 20007136 is about 4472.9337129003. The cubic root of 20007136 is about 271.4740412942.

Adding to 20007136 its reverse (63170002), we get a palindrome (83177138).

The spelling of 20007136 in words is "twenty million, seven thousand, one hundred thirty-six".