27220536 has 160 divisors (see below), whose sum is σ = 92521440. Its totient is φ = 7299072.

The previous prime is 27220517. The next prime is 27220541. The reversal of 27220536 is 63502272.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 76936 + ... + 77288.

It is an arithmetic number, because the mean of its divisors is an integer number (578259).

Almost surely, 2^27220536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27220536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46260720).

27220536 is an abundant number, since it is smaller than the sum of its proper divisors (65300904).

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

27220536 is a wasteful number, since it uses less digits than its factorization.

27220536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 27220536 is about 5217.3303518179. The cubic root of 27220536 is about 300.8145861627.

The spelling of 27220536 in words is "twenty-seven million, two hundred twenty thousand, five hundred thirty-six".