20752430 has 16 divisors (see below), whose sum is σ = 37419840. Its totient is φ = 8286432.

The previous prime is 20752411. The next prime is 20752441. The reversal of 20752430 is 3425702.

It is a junction number, because it is equal to n+sod(n) for n = 20752396 and 20752405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5627 + ... + 8553.

It is an arithmetic number, because the mean of its divisors is an integer number (2338740).

Almost surely, 2^20752430 is an apocalyptic number.

20752430 is a deficient number, since it is larger than the sum of its proper divisors (16667410).

20752430 is a wasteful number, since it uses less digits than its factorization.

20752430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3643.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 20752430 is about 4555.4835089154. The cubic root of 20752430 is about 274.8039594544.

The spelling of 20752430 in words is "twenty million, seven hundred fifty-two thousand, four hundred thirty".