27145430 has 64 divisors (see below), whose sum is σ = 56827008. Its totient is φ = 9246720.

The previous prime is 27145423. The next prime is 27145477. The reversal of 27145430 is 3454172.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 27145430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156824 + ... + 156996.

It is an arithmetic number, because the mean of its divisors is an integer number (887922).

Almost surely, 2^27145430 is an apocalyptic number.

27145430 is an abundant number, since it is smaller than the sum of its proper divisors (29681578).

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

27145430 is a wasteful number, since it uses less digits than its factorization.

27145430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 27145430 is about 5210.1276375920. The cubic root of 27145430 is about 300.5376654402.

The spelling of 27145430 in words is "twenty-seven million, one hundred forty-five thousand, four hundred thirty".