27220260240 has 60 divisors (see below), whose sum is σ = 91414709724. Its totient is φ = 7258735872.

The previous prime is 27220260211. The next prime is 27220260251. The reversal of 27220260240 is 4206202272.

It can be written as a sum of positive squares in 2 ways, for example, as 5533574544 + 21686685696 = 74388^2 + 147264^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18902239 + ... + 18903678.

Almost surely, 2^27220260240 is an apocalyptic number.

27220260240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27220260240 is an abundant number, since it is smaller than the sum of its proper divisors (64194449484).

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

27220260240 is a wasteful number, since it uses less digits than its factorization.

27220260240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37805936 (or 37805927 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The spelling of 27220260240 in words is "twenty-seven billion, two hundred twenty million, two hundred sixty thousand, two hundred forty".