20958796 has 24 divisors (see below), whose sum is σ = 38435040. Its totient is φ = 9981312.

The previous prime is 20958781. The next prime is 20958803. The reversal of 20958796 is 69785902.

It is a super-2 number, since 2×20958796² = 878542259539232, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (46).

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, 37350 + ... + 37906.

It is an arithmetic number, because the mean of its divisors is an integer number (1601460).

Almost surely, 2^20958796 is an apocalyptic number.

It is an amenable number.

20958796 is a deficient number, since it is larger than the sum of its proper divisors (17476244).

20958796 is a wasteful number, since it uses less digits than its factorization.

20958796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 20958796 is about 4578.0777625549. The cubic root of 20958796 is about 275.7118570946.

The spelling of 20958796 in words is "twenty million, nine hundred fifty-eight thousand, seven hundred ninety-six".