18252078 has 32 divisors (see below), whose sum is σ = 40672800. Its totient is φ = 5421696.

The previous prime is 18252061. The next prime is 18252083. The reversal of 18252078 is 87025281.

It is a Curzon number.

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, 1773 + ... + 6296.

It is an arithmetic number, because the mean of its divisors is an integer number (1271025).

Almost surely, 2^18252078 is an apocalyptic number.

18252078 is an abundant number, since it is smaller than the sum of its proper divisors (22420722).

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

18252078 is a wasteful number, since it uses less digits than its factorization.

18252078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 18252078 is about 4272.2450772398. The cubic root of 18252078 is about 263.2918637184.

The spelling of 18252078 in words is "eighteen million, two hundred fifty-two thousand, seventy-eight".