27023920 has 160 divisors (see below), whose sum is σ = 80994816. Its totient is φ = 8140800.

The previous prime is 27023903. The next prime is 27023923. The reversal of 27023920 is 2932072.

It is not an unprimeable number, because it can be changed into a prime (27023923) by changing a digit.

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, 252507 + ... + 252613.

Almost surely, 2^27023920 is an apocalyptic number.

27023920 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 27023920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40497408).

27023920 is an abundant number, since it is smaller than the sum of its proper divisors (53970896).

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

27023920 is a wasteful number, since it uses less digits than its factorization.

27023920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 27023920 is about 5198.4536162209. The cubic root of 27023920 is about 300.0885664433.

Adding to 27023920 its reverse (2932072), we get a palindrome (29955992).

The spelling of 27023920 in words is "twenty-seven million, twenty-three thousand, nine hundred twenty".