27223780 has 24 divisors (see below), whose sum is σ = 58141440. Its totient is φ = 10704480.

The previous prime is 27223769. The next prime is 27223793. The reversal of 27223780 is 8732272.

It is a super-2 number, since 2×27223780² = 1482268394976800, which contains 22 as substring.

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, 10356 + ... + 12715.

It is an arithmetic number, because the mean of its divisors is an integer number (2422560).

Almost surely, 2^27223780 is an apocalyptic number.

27223780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27223780 is an abundant number, since it is smaller than the sum of its proper divisors (30917660).

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

27223780 is a wasteful number, since it uses less digits than its factorization.

27223780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23139 (or 23137 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 27223780 is about 5217.6412295212. The cubic root of 27223780 is about 300.8265355203.

The spelling of 27223780 in words is "twenty-seven million, two hundred twenty-three thousand, seven hundred eighty".