27140820 has 48 divisors (see below), whose sum is σ = 86851968. Its totient is φ = 6203520.

The previous prime is 27140819. The next prime is 27140833. The reversal of 27140820 is 2804172.

It is a super-2 number, since 2×27140820² = 1473248220544800, 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 15 ways as a sum of consecutive naturals, for example, 31891 + ... + 32730.

It is an arithmetic number, because the mean of its divisors is an integer number (1809416).

Almost surely, 2^27140820 is an apocalyptic number.

27140820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27140820 is an abundant number, since it is smaller than the sum of its proper divisors (59711148).

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

27140820 is a wasteful number, since it uses less digits than its factorization.

27140820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64640 (or 64638 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 27140820 is about 5209.6852112196. The cubic root of 27140820 is about 300.5206514398.

Adding to 27140820 its reverse (2804172), we get a palindrome (29944992).

The spelling of 27140820 in words is "twenty-seven million, one hundred forty thousand, eight hundred twenty".