20958748 has 12 divisors (see below), whose sum is σ = 38608360. Its totient is φ = 9927792.

The previous prime is 20958737. The next prime is 20958781. The reversal of 20958748 is 84785902.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

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, 137811 + ... + 137962.

Almost surely, 2^20958748 is an apocalyptic number.

It is an amenable number.

20958748 is a deficient number, since it is larger than the sum of its proper divisors (17649612).

20958748 is a wasteful number, since it uses less digits than its factorization.

20958748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275796 (or 275794 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 20958748 is about 4578.0725201770. The cubic root of 20958748 is about 275.7116466153.

The spelling of 20958748 in words is "twenty million, nine hundred fifty-eight thousand, seven hundred forty-eight".