20701792 has 48 divisors (see below), whose sum is σ = 43545600. Its totient is φ = 9659520.

The previous prime is 20701789. The next prime is 20701819. The reversal of 20701792 is 29710702.

It is a happy number.

It is a super-2 number, since 2×20701792² = 857128384022528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20701792.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47817 + ... + 48247.

It is an arithmetic number, because the mean of its divisors is an integer number (907200).

Almost surely, 2^20701792 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20701792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21772800).

20701792 is an abundant number, since it is smaller than the sum of its proper divisors (22843808).

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

20701792 is a wasteful number, since it uses less digits than its factorization.

20701792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539 (or 531 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 20701792 is about 4549.9221971370. The cubic root of 20701792 is about 274.5802610459.

Multiplying 20701792 by its sum of digits (28), we get a triangular number (579650176 = T₃₄₀₄₈).

The spelling of 20701792 in words is "twenty million, seven hundred one thousand, seven hundred ninety-two".