20652039 has 6 divisors (see below), whose sum is σ = 29830736. Its totient is φ = 13768020.

The previous prime is 20652017. The next prime is 20652041. The reversal of 20652039 is 93025602.

20652039 is a `hidden beast` number, since 2 + 0 + 652 + 0 + 3 + 9 = 666.

It is not a de Polignac number, because 20652039 - 2⁸ = 20651783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20652239) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1147327 + ... + 1147344.

Almost surely, 2^20652039 is an apocalyptic number.

20652039 is a deficient number, since it is larger than the sum of its proper divisors (9178697).

20652039 is a wasteful number, since it uses less digits than its factorization.

20652039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2294677 (or 2294674 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 20652039 is about 4544.4514520457. The cubic root of 20652039 is about 274.3601166509.

The spelling of 20652039 in words is "twenty million, six hundred fifty-two thousand, thirty-nine".