20952594 has 40 divisors (see below), whose sum is σ = 50565900. Its totient is φ = 6446304.

The previous prime is 20952593. The next prime is 20952623. The reversal of 20952594 is 49525902.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19686969 + 1265625 = 4437^2 + 1125^2 .

It is a super-2 number, since 2×20952594² = 878022390657672, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20952593) 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, 2869 + ... + 7080.

Almost surely, 2^20952594 is an apocalyptic number.

20952594 is an abundant number, since it is smaller than the sum of its proper divisors (29613306).

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

20952594 is a wasteful number, since it uses less digits than its factorization.

20952594 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9976 (or 9967 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 20952594 is about 4577.4003539127. The cubic root of 20952594 is about 275.6846587506.

The spelling of 20952594 in words is "twenty million, nine hundred fifty-two thousand, five hundred ninety-four".