20057622 has 32 divisors (see below), whose sum is σ = 43539552. Its totient is φ = 6123264.

The previous prime is 20057621. The next prime is 20057627. The reversal of 20057622 is 22675002.

It is a junction number, because it is equal to n+sod(n) for n = 20057592 and 20057601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20057621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9748 + ... + 11624.

It is an arithmetic number, because the mean of its divisors is an integer number (1360611).

Almost surely, 2^20057622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20057622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21769776).

20057622 is an abundant number, since it is smaller than the sum of its proper divisors (23481930).

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

20057622 is a wasteful number, since it uses less digits than its factorization.

20057622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2032.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 20057622 is about 4478.5736568689. The cubic root of 20057622 is about 271.7021953274.

The spelling of 20057622 in words is "twenty million, fifty-seven thousand, six hundred twenty-two".