27123030 has 48 divisors (see below), whose sum is σ = 76933584. Its totient is φ = 6575040.

The previous prime is 27123023. The next prime is 27123053. The reversal of 27123030 is 3032172.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 27122994 and 27123012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12709 + ... + 14688.

It is an arithmetic number, because the mean of its divisors is an integer number (1602783).

Almost surely, 2^27123030 is an apocalyptic number.

27123030 is an abundant number, since it is smaller than the sum of its proper divisors (49810554).

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

27123030 is a wasteful number, since it uses less digits than its factorization.

27123030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27421 (or 27418 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 27123030 is about 5207.9775345138. The cubic root of 27123030 is about 300.4549763064.

The spelling of 27123030 in words is "twenty-seven million, one hundred twenty-three thousand, thirty".