27172380 has 24 divisors (see below), whose sum is σ = 76082832. Its totient is φ = 7245952.

The previous prime is 27172367. The next prime is 27172421. The reversal of 27172380 is 8327172.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 226377 + ... + 226496.

It is an arithmetic number, because the mean of its divisors is an integer number (3170118).

Almost surely, 2^27172380 is an apocalyptic number.

27172380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27172380 is an abundant number, since it is smaller than the sum of its proper divisors (48910452).

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

27172380 is a wasteful number, since it uses less digits than its factorization.

27172380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452885 (or 452883 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 27172380 is about 5212.7133049881. The cubic root of 27172380 is about 300.6370905389.

The spelling of 27172380 in words is "twenty-seven million, one hundred seventy-two thousand, three hundred eighty".