27930040 has 16 divisors (see below), whose sum is σ = 62842680. Its totient is φ = 11172000.

The previous prime is 27930037. The next prime is 27930041. The reversal of 27930040 is 4003972.

It is a junction number, because it is equal to n+sod(n) for n = 27929987 and 27930014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27930041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349086 + ... + 349165.

Almost surely, 2^27930040 is an apocalyptic number.

27930040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27930040 is an abundant number, since it is smaller than the sum of its proper divisors (34912640).

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

27930040 is a wasteful number, since it uses less digits than its factorization.

27930040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698262 (or 698258 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 27930040 is about 5284.8878890663. The cubic root of 27930040 is about 303.4057817799.

The spelling of 27930040 in words is "twenty-seven million, nine hundred thirty thousand, forty".