27221352 has 64 divisors (see below), whose sum is σ = 72731520. Its totient is φ = 8460288.

The previous prime is 27221339. The next prime is 27221353. The reversal of 27221352 is 25312272.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (27221353) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55653 + ... + 56139.

It is an arithmetic number, because the mean of its divisors is an integer number (1136430).

Almost surely, 2^27221352 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 27221352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36365760).

27221352 is an abundant number, since it is smaller than the sum of its proper divisors (45510168).

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

27221352 is a wasteful number, since it uses less digits than its factorization.

27221352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 646 counting only the distinct ones).

The product of its digits is 1680, while the sum is 24.

The square root of 27221352 is about 5217.4085521454. The cubic root of 27221352 is about 300.8175920091.

The spelling of 27221352 in words is "twenty-seven million, two hundred twenty-one thousand, three hundred fifty-two".