20275472 has 20 divisors (see below), whose sum is σ = 44895936. Its totient is φ = 8689440.

The previous prime is 20275469. The next prime is 20275483. The reversal of 20275472 is 27457202.

It is a super-2 number, since 2×20275472² = 822189529645568, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90404 + ... + 90627.

Almost surely, 2^20275472 is an apocalyptic number.

It is an amenable number.

20275472 is an abundant number, since it is smaller than the sum of its proper divisors (24620464).

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

20275472 is a wasteful number, since it uses less digits than its factorization.

20275472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181046 (or 181040 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 29.

The square root of 20275472 is about 4502.8293327640. The cubic root of 20275472 is about 272.6823267077.

The spelling of 20275472 in words is "twenty million, two hundred seventy-five thousand, four hundred seventy-two".