20752434 has 12 divisors (see below), whose sum is σ = 44963646. Its totient is φ = 6917472.

The previous prime is 20752411. The next prime is 20752441. The reversal of 20752434 is 43425702.

It can be written as a sum of positive squares in only one way, i.e., 18020025 + 2732409 = 4245^2 + 1653^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 20752398 and 20752407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 576439 + ... + 576474.

Almost surely, 2^20752434 is an apocalyptic number.

20752434 is an abundant number, since it is smaller than the sum of its proper divisors (24211212).

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

20752434 is a wasteful number, since it uses less digits than its factorization.

20752434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152921 (or 1152918 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 20752434 is about 4555.4839479467. The cubic root of 20752434 is about 274.8039771104.

The spelling of 20752434 in words is "twenty million, seven hundred fifty-two thousand, four hundred thirty-four".