20574672 has 20 divisors (see below), whose sum is σ = 53151360. Its totient is φ = 6858208.

The previous prime is 20574637. The next prime is 20574677. The reversal of 20574672 is 27647502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20574677) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 214272 + ... + 214367.

It is an arithmetic number, because the mean of its divisors is an integer number (2657568).

Almost surely, 2^20574672 is an apocalyptic number.

It is an amenable number.

20574672 is an abundant number, since it is smaller than the sum of its proper divisors (32576688).

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

20574672 is a wasteful number, since it uses less digits than its factorization.

20574672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428650 (or 428644 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 20574672 is about 4535.9312164097. The cubic root of 20574672 is about 274.0170838443.

The spelling of 20574672 in words is "twenty million, five hundred seventy-four thousand, six hundred seventy-two".