27381372 has 12 divisors (see below), whose sum is σ = 63889896. Its totient is φ = 9127120.

The previous prime is 27381353. The next prime is 27381377. The reversal of 27381372 is 27318372.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27381377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140879 + ... + 1140902.

It is an arithmetic number, because the mean of its divisors is an integer number (5324158).

Almost surely, 2^27381372 is an apocalyptic number.

It is an amenable number.

27381372 is an abundant number, since it is smaller than the sum of its proper divisors (36508524).

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

27381372 is a wasteful number, since it uses less digits than its factorization.

27381372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281788 (or 2281786 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 27381372 is about 5232.7212805576. The cubic root of 27381372 is about 301.4058901732.

The spelling of 27381372 in words is "twenty-seven million, three hundred eighty-one thousand, three hundred seventy-two".