27439040 has 56 divisors (see below), whose sum is σ = 68793360. Its totient is φ = 10395648.

The previous prime is 27439039. The next prime is 27439051. The reversal of 27439040 is 4093472.

It is a super-2 number, since 2×27439040² = 1505801832243200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27438994 and 27439012.

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, 3824 + ... + 8336.

Almost surely, 2^27439040 is an apocalyptic number.

27439040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27439040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34396680).

27439040 is an abundant number, since it is smaller than the sum of its proper divisors (41354320).

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

27439040 is a wasteful number, since it uses less digits than its factorization.

27439040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549 (or 4539 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 27439040 is about 5238.2287082563. The cubic root of 27439040 is about 301.6173391191.

The spelling of 27439040 in words is "twenty-seven million, four hundred thirty-nine thousand, forty".