20741996 has 48 divisors (see below), whose sum is σ = 42725760. Its totient is φ = 8709120.

The previous prime is 20741947. The next prime is 20742017. The reversal of 20741996 is 69914702.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35660 + ... + 36236.

It is an arithmetic number, because the mean of its divisors is an integer number (890120).

Almost surely, 2^20741996 is an apocalyptic number.

It is an amenable number.

20741996 is an abundant number, since it is smaller than the sum of its proper divisors (21983764).

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

20741996 is a wasteful number, since it uses less digits than its factorization.

20741996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654 (or 652 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 20741996 is about 4554.3381516967. The cubic root of 20741996 is about 274.7578960104.

The spelling of 20741996 in words is "twenty million, seven hundred forty-one thousand, nine hundred ninety-six".