20274260 has 12 divisors (see below), whose sum is σ = 42575988. Its totient is φ = 8109696.

The previous prime is 20274259. The next prime is 20274269. The reversal of 20274260 is 6247202.

It can be written as a sum of positive squares in 2 ways, for example, as 4813636 + 15460624 = 2194^2 + 3932^2 .

It is a super-2 number, since 2×20274260² = 822091237095200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20274269) 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, 506837 + ... + 506876.

It is an arithmetic number, because the mean of its divisors is an integer number (3547999).

Almost surely, 2^20274260 is an apocalyptic number.

20274260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20274260 is an abundant number, since it is smaller than the sum of its proper divisors (22301728).

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

20274260 is a wasteful number, since it uses less digits than its factorization.

20274260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013722 (or 1013720 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 20274260 is about 4502.6947487033. The cubic root of 20274260 is about 272.6768932532.

The spelling of 20274260 in words is "twenty million, two hundred seventy-four thousand, two hundred sixty".