27619940 has 12 divisors (see below), whose sum is σ = 58001916. Its totient is φ = 11047968.

The previous prime is 27619931. The next prime is 27619957. The reversal of 27619940 is 4991672.

It can be written as a sum of positive squares in 2 ways, for example, as 11874916 + 15745024 = 3446^2 + 3968^2 .

It is a super-2 number, since 2×27619940² = 1525722171207200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27619894 and 27619903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 690479 + ... + 690518.

It is an arithmetic number, because the mean of its divisors is an integer number (4833493).

Almost surely, 2^27619940 is an apocalyptic number.

27619940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27619940 is an abundant number, since it is smaller than the sum of its proper divisors (30381976).

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

27619940 is a wasteful number, since it uses less digits than its factorization.

27619940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1381006 (or 1381004 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 27619940 is about 5255.4676290507. The cubic root of 27619940 is about 302.2787216754.

The spelling of 27619940 in words is "twenty-seven million, six hundred nineteen thousand, nine hundred forty".