27401240 has 16 divisors (see below), whose sum is σ = 61652880. Its totient is φ = 10960480.

The previous prime is 27401221. The next prime is 27401267. The reversal of 27401240 is 4210472.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 342476 + ... + 342555.

It is an arithmetic number, because the mean of its divisors is an integer number (3853305).

Almost surely, 2^27401240 is an apocalyptic number.

27401240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27401240 is an abundant number, since it is smaller than the sum of its proper divisors (34251640).

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

27401240 is a wasteful number, since it uses less digits than its factorization.

27401240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685042 (or 685038 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 27401240 is about 5234.6193748925. The cubic root of 27401240 is about 301.4787728666.

The spelling of 27401240 in words is "twenty-seven million, four hundred one thousand, two hundred forty".