20392572 has 12 divisors (see below), whose sum is σ = 47582696. Its totient is φ = 6797520.

The previous prime is 20392523. The next prime is 20392577. The reversal of 20392572 is 27529302.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20392577) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 849679 + ... + 849702.

Almost surely, 2^20392572 is an apocalyptic number.

It is an amenable number.

20392572 is an abundant number, since it is smaller than the sum of its proper divisors (27190124).

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

20392572 is a wasteful number, since it uses less digits than its factorization.

20392572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1699388 (or 1699386 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 20392572 is about 4515.8135479667. The cubic root of 20392572 is about 273.2062738159.

The spelling of 20392572 in words is "twenty million, three hundred ninety-two thousand, five hundred seventy-two".