20860744 has 16 divisors (see below), whose sum is σ = 40463100. Its totient is φ = 10070592.

The previous prime is 20860739. The next prime is 20860757. The reversal of 20860744 is 44706802.

It can be written as a sum of positive squares in 2 ways, for example, as 19980900 + 879844 = 4470^2 + 938^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44727 + ... + 45190.

Almost surely, 2^20860744 is an apocalyptic number.

It is an amenable number.

20860744 is a deficient number, since it is larger than the sum of its proper divisors (19602356).

20860744 is a wasteful number, since it uses less digits than its factorization.

20860744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89952 (or 89948 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20860744 is about 4567.3563469473. The cubic root of 20860744 is about 275.2812285572.

The spelling of 20860744 in words is "twenty million, eight hundred sixty thousand, seven hundred forty-four".