27402480 has 120 divisors (see below), whose sum is σ = 105192672. Its totient is φ = 6262272.

The previous prime is 27402467. The next prime is 27402509. The reversal of 27402480 is 8420472.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

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, 2322 + ... + 7758.

Almost surely, 2^27402480 is an apocalyptic number.

27402480 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 27402480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52596336).

27402480 is an abundant number, since it is smaller than the sum of its proper divisors (77790192).

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

27402480 is a wasteful number, since it uses less digits than its factorization.

27402480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5463 (or 5454 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 27402480 is about 5234.7378157841. The cubic root of 27402480 is about 301.4833204472.

The spelling of 27402480 in words is "twenty-seven million, four hundred two thousand, four hundred eighty".