23278080 has 160 divisors (see below), whose sum is σ = 85244544. Its totient is φ = 5308416.

The previous prime is 23278067. The next prime is 23278091. The reversal of 23278080 is 8087232.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 53544 + ... + 53976.

Almost surely, 2^23278080 is an apocalyptic number.

23278080 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 23278080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42622272).

23278080 is an abundant number, since it is smaller than the sum of its proper divisors (61966464).

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

23278080 is an equidigital number, since it uses as much as digits as its factorization.

23278080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466 (or 450 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 23278080 is about 4824.7362622220. The cubic root of 23278080 is about 285.5282293431.

The spelling of 23278080 in words is "twenty-three million, two hundred seventy-eight thousand, eighty".