20270572 has 12 divisors (see below), whose sum is σ = 40541200. Its totient is φ = 8687376.

The previous prime is 20270563. The next prime is 20270573. The reversal of 20270572 is 27507202.

20270572 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20270573) 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, 361947 + ... + 362002.

Almost surely, 2^20270572 is an apocalyptic number.

It is an amenable number.

20270572 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20270572 is a wasteful number, since it uses less digits than its factorization.

20270572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723960 (or 723958 counting only the distinct ones).

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

The square root of 20270572 is about 4502.2851975414. The cubic root of 20270572 is about 272.6603584390.

Adding to 20270572 its reverse (27507202), we get a palindrome (47777774).

The spelling of 20270572 in words is "twenty million, two hundred seventy thousand, five hundred seventy-two".