20494572 has 48 divisors (see below), whose sum is σ = 54915840. Its totient is φ = 5827392.

The previous prime is 20494553. The next prime is 20494601. The reversal of 20494572 is 27549402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22143 + ... + 23049.

It is an arithmetic number, because the mean of its divisors is an integer number (1144080).

Almost surely, 2^20494572 is an apocalyptic number.

It is an amenable number.

20494572 is an abundant number, since it is smaller than the sum of its proper divisors (34421268).

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

20494572 is a wasteful number, since it uses less digits than its factorization.

20494572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20494572 is about 4527.0931070611. The cubic root of 20494572 is about 273.6610261088.

The spelling of 20494572 in words is "twenty million, four hundred ninety-four thousand, five hundred seventy-two".