20057722 has 8 divisors (see below), whose sum is σ = 31856436. Its totient is φ = 9438912.

The previous prime is 20057717. The next prime is 20057729. The reversal of 20057722 is 22775002.

It can be written as a sum of positive squares in 2 ways, for example, as 19722481 + 335241 = 4441^2 + 579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20057729) 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, 294933 + ... + 295000.

Almost surely, 2^20057722 is an apocalyptic number.

20057722 is a deficient number, since it is larger than the sum of its proper divisors (11798714).

20057722 is a wasteful number, since it uses less digits than its factorization.

20057722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589952.

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 20057722 is about 4478.5848211237. The cubic root of 20057722 is about 271.7026468627.

The spelling of 20057722 in words is "twenty million, fifty-seven thousand, seven hundred twenty-two".