27475420 has 48 divisors (see below), whose sum is σ = 66306240. Its totient is φ = 9368064.

The previous prime is 27475411. The next prime is 27475433. The reversal of 27475420 is 2457472.

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, 31632 + ... + 32488.

It is an arithmetic number, because the mean of its divisors is an integer number (1381380).

Almost surely, 2^27475420 is an apocalyptic number.

27475420 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 27475420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33153120).

27475420 is an abundant number, since it is smaller than the sum of its proper divisors (38830820).

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

27475420 is a wasteful number, since it uses less digits than its factorization.

27475420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 27475420 is about 5241.7001058817. The cubic root of 27475420 is about 301.7505798462.

The spelling of 27475420 in words is "twenty-seven million, four hundred seventy-five thousand, four hundred twenty".