18014780 has 24 divisors (see below), whose sum is σ = 43235808. Its totient is φ = 6176448.

The previous prime is 18014779. The next prime is 18014809. The reversal of 18014780 is 8741081.

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 7 ways as a sum of consecutive naturals, for example, 64199 + ... + 64478.

It is an arithmetic number, because the mean of its divisors is an integer number (1801492).

Almost surely, 2^18014780 is an apocalyptic number.

18014780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18014780 is an abundant number, since it is smaller than the sum of its proper divisors (25221028).

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

18014780 is a wasteful number, since it uses less digits than its factorization.

18014780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128693 (or 128691 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 29.

The square root of 18014780 is about 4244.3821694093. The cubic root of 18014780 is about 262.1458504595.

The spelling of 18014780 in words is "eighteen million, fourteen thousand, seven hundred eighty".