18074880 has 144 divisors (see below), whose sum is σ = 64263360. Its totient is φ = 4810752.

The previous prime is 18074879. The next prime is 18074897. The reversal of 18074880 is 8847081.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 34299 + ... + 34821.

Almost surely, 2^18074880 is an apocalyptic number.

18074880 is a gapful number since it is divisible by the number (10) 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 18074880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32131680).

18074880 is an abundant number, since it is smaller than the sum of its proper divisors (46188480).

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

18074880 is an equidigital number, since it uses as much as digits as its factorization.

18074880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 18074880 is about 4251.4562211082. The cubic root of 18074880 is about 262.4370461278.

The spelling of 18074880 in words is "eighteen million, seventy-four thousand, eight hundred eighty".