27940140 has 72 divisors (see below), whose sum is σ = 87906000. Its totient is φ = 7449408.

The previous prime is 27940117. The next prime is 27940151. The reversal of 27940140 is 4104972.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 1986 + ... + 7734.

Almost surely, 2^27940140 is an apocalyptic number.

27940140 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 27940140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43953000).

27940140 is an abundant number, since it is smaller than the sum of its proper divisors (59965860).

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

27940140 is a wasteful number, since it uses less digits than its factorization.

27940140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5773 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 27940140 is about 5285.8433574975. The cubic root of 27940140 is about 303.4423496842.

The spelling of 27940140 in words is "twenty-seven million, nine hundred forty thousand, one hundred forty".