20594940 has 48 divisors (see below), whose sum is σ = 59230752. Its totient is φ = 5342976.

The previous prime is 20594927. The next prime is 20594947. The reversal of 20594940 is 4949502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20594947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2419 + ... + 6858.

It is an arithmetic number, because the mean of its divisors is an integer number (1233974).

Almost surely, 2^20594940 is an apocalyptic number.

20594940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20594940 is an abundant number, since it is smaller than the sum of its proper divisors (38635812).

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

20594940 is a wasteful number, since it uses less digits than its factorization.

20594940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9326 (or 9324 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 20594940 is about 4538.1648273283. The cubic root of 20594940 is about 274.1070319058.

The spelling of 20594940 in words is "twenty million, five hundred ninety-four thousand, nine hundred forty".