27221404 has 24 divisors (see below), whose sum is σ = 54598880. Its totient is φ = 11632896.

The previous prime is 27221399. The next prime is 27221429. The reversal of 27221404 is 40412272.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10264 + ... + 12640.

Almost surely, 2^27221404 is an apocalyptic number.

It is an amenable number.

27221404 is an abundant number, since it is smaller than the sum of its proper divisors (27377476).

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

27221404 is a wasteful number, since it uses less digits than its factorization.

27221404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797 (or 2795 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 22.

The square root of 27221404 is about 5217.4135354599. The cubic root of 27221404 is about 300.8177835561.

Adding to 27221404 its reverse (40412272), we get a palindrome (67633676).

The spelling of 27221404 in words is "twenty-seven million, two hundred twenty-one thousand, four hundred four".