18052770 has 16 divisors (see below), whose sum is σ = 43326720. Its totient is φ = 4814064.

The previous prime is 18052729. The next prime is 18052813. The reversal of 18052770 is 7725081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 601759 = 18052770 / (1 + 8 + 0 + 5 + 2 + 7 + 7 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 300850 + ... + 300909.

It is an arithmetic number, because the mean of its divisors is an integer number (2707920).

Almost surely, 2^18052770 is an apocalyptic number.

18052770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18052770 is an abundant number, since it is smaller than the sum of its proper divisors (25273950).

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

18052770 is a wasteful number, since it uses less digits than its factorization.

18052770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601769.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 18052770 is about 4248.8551399171. The cubic root of 18052770 is about 262.3299942294.

The spelling of 18052770 in words is "eighteen million, fifty-two thousand, seven hundred seventy".