27145460 has 24 divisors (see below), whose sum is σ = 58845696. Its totient is φ = 10507680.

The previous prime is 27145423. The next prime is 27145477. The reversal of 27145460 is 6454172.

It is a super-2 number, since 2×27145460² = 1473751997223200, 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, 21272 + ... + 22511.

It is an arithmetic number, because the mean of its divisors is an integer number (2451904).

Almost surely, 2^27145460 is an apocalyptic number.

27145460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27145460 is an abundant number, since it is smaller than the sum of its proper divisors (31700236).

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

27145460 is a wasteful number, since it uses less digits than its factorization.

27145460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43823 (or 43821 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 27145460 is about 5210.1305165994. The cubic root of 27145460 is about 300.5377761541.

The spelling of 27145460 in words is "twenty-seven million, one hundred forty-five thousand, four hundred sixty".