20770596 has 144 divisors (see below), whose sum is σ = 67092480. Its totient is φ = 5261760.

The previous prime is 20770573. The next prime is 20770609. The reversal of 20770596 is 69507702.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 20770596.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 163485 + ... + 163611.

It is an arithmetic number, because the mean of its divisors is an integer number (465920).

Almost surely, 2^20770596 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 20770596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33546240).

20770596 is an abundant number, since it is smaller than the sum of its proper divisors (46321884).

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

20770596 is a wasteful number, since it uses less digits than its factorization.

20770596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 20770596 is about 4557.4769335675. The cubic root of 20770596 is about 274.8841208748.

The spelling of 20770596 in words is "twenty million, seven hundred seventy thousand, five hundred ninety-six".