27021940 has 24 divisors (see below), whose sum is σ = 61905312. Its totient is φ = 9826080.

The previous prime is 27021923. The next prime is 27021983. The reversal of 27021940 is 4912072.

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, 61194 + ... + 61633.

It is an arithmetic number, because the mean of its divisors is an integer number (2579388).

Almost surely, 2^27021940 is an apocalyptic number.

27021940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27021940 is an abundant number, since it is smaller than the sum of its proper divisors (34883372).

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

27021940 is a wasteful number, since it uses less digits than its factorization.

27021940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122847 (or 122845 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 27021940 is about 5198.2631714833. The cubic root of 27021940 is about 300.0812372590.

The spelling of 27021940 in words is "twenty-seven million, twenty-one thousand, nine hundred forty".