20959074 has 40 divisors (see below), whose sum is σ = 47689488. Its totient is φ = 6878520.

The previous prime is 20959073. The next prime is 20959087. The reversal of 20959074 is 47095902.

It is not an unprimeable number, because it can be changed into a prime (20959073) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9889 + ... + 11819.

Almost surely, 2^20959074 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20959074, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23844744).

20959074 is an abundant number, since it is smaller than the sum of its proper divisors (26730414).

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

20959074 is a wasteful number, since it uses less digits than its factorization.

20959074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2012 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 20959074 is about 4578.1081245423. The cubic root of 20959074 is about 275.7130761143.

The spelling of 20959074 in words is "twenty million, nine hundred fifty-nine thousand, seventy-four".