20572412 has 12 divisors (see below), whose sum is σ = 41144880. Its totient is φ = 8816736.

The previous prime is 20572399. The next prime is 20572429. The reversal of 20572412 is 21427502.

It is a happy number.

20572412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367337 + ... + 367392.

It is an arithmetic number, because the mean of its divisors is an integer number (3428740).

Almost surely, 2^20572412 is an apocalyptic number.

It is an amenable number.

20572412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20572412 is a wasteful number, since it uses less digits than its factorization.

20572412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734740 (or 734738 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 20572412 is about 4535.6820876247. The cubic root of 20572412 is about 274.0070504517.

Adding to 20572412 its reverse (21427502), we get a palindrome (41999914).

The spelling of 20572412 in words is "twenty million, five hundred seventy-two thousand, four hundred twelve".