20461996 has 24 divisors (see below), whose sum is σ = 37588320. Its totient is φ = 9727872.

The previous prime is 20461981. The next prime is 20462003. The reversal of 20461996 is 69916402.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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, 17560 + ... + 18688.

It is an arithmetic number, because the mean of its divisors is an integer number (1566180).

Almost surely, 2^20461996 is an apocalyptic number.

It is an amenable number.

20461996 is a deficient number, since it is larger than the sum of its proper divisors (17126324).

20461996 is a wasteful number, since it uses less digits than its factorization.

20461996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353 (or 1351 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 20461996 is about 4523.4937824651. The cubic root of 20461996 is about 273.5159550287.

The spelling of 20461996 in words is "twenty million, four hundred sixty-one thousand, nine hundred ninety-six".