27051840 has 224 divisors, whose sum is σ = 99486720. Its totient is φ = 6912000.

The previous prime is 27051833. The next prime is 27051851. The reversal of 27051840 is 4815072.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 267790 + ... + 267890.

Almost surely, 2^27051840 is an apocalyptic number.

27051840 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 27051840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49743360).

27051840 is an abundant number, since it is smaller than the sum of its proper divisors (72434880).

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

27051840 is a wasteful number, since it uses less digits than its factorization.

27051840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 27051840 is about 5201.1383369413. The cubic root of 27051840 is about 300.1918772509.

The spelling of 27051840 in words is "twenty-seven million, fifty-one thousand, eight hundred forty".