20274772 has 12 divisors (see below), whose sum is σ = 40549600. Its totient is φ = 8689176.

The previous prime is 20274769. The next prime is 20274773. The reversal of 20274772 is 27747202.

20274772 is an admirable number.

It is a super-2 number, since 2×20274772² = 822132759303968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362022 + ... + 362077.

Almost surely, 2^20274772 is an apocalyptic number.

It is an amenable number.

20274772 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.

20274772 is a wasteful number, since it uses less digits than its factorization.

20274772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724110 (or 724108 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 31.

The square root of 20274772 is about 4502.7516031867. The cubic root of 20274772 is about 272.6791886003.

The spelling of 20274772 in words is "twenty million, two hundred seventy-four thousand, seven hundred seventy-two".