27429912 has 24 divisors (see below), whose sum is σ = 74289540. Its totient is φ = 9143280.

The previous prime is 27429907. The next prime is 27429949. The reversal of 27429912 is 21992472.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190414 + ... + 190557.

Almost surely, 2^27429912 is an apocalyptic number.

It is an amenable number.

27429912 is an abundant number, since it is smaller than the sum of its proper divisors (46859628).

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

27429912 is a wasteful number, since it uses less digits than its factorization.

27429912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380983 (or 380976 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 27429912 is about 5237.3573488927. The cubic root of 27429912 is about 301.5838895958.

The spelling of 27429912 in words is "twenty-seven million, four hundred twenty-nine thousand, nine hundred twelve".