27455480 has 64 divisors (see below), whose sum is σ = 68372640. Its totient is φ = 9856512.

The previous prime is 27455471. The next prime is 27455501. The reversal of 27455480 is 8455472.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 27455480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18527 + ... + 19953.

Almost surely, 2^27455480 is an apocalyptic number.

27455480 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 27455480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34186320).

27455480 is an abundant number, since it is smaller than the sum of its proper divisors (40917160).

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

27455480 is a wasteful number, since it uses less digits than its factorization.

27455480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488 (or 1484 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 27455480 is about 5239.7977060188. The cubic root of 27455480 is about 301.6775647328.

The spelling of 27455480 in words is "twenty-seven million, four hundred fifty-five thousand, four hundred eighty".