18202275 has 108 divisors (see below), whose sum is σ = 41164032. Its totient is φ = 7620480.

The previous prime is 18202273. The next prime is 18202279. The reversal of 18202275 is 57220281.

It is not a de Polignac number, because 18202275 - 2¹ = 18202273 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18202271) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 143262 + ... + 143388.

Almost surely, 2^18202275 is an apocalyptic number.

18202275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18202275 is an abundant number, since it is smaller than the sum of its proper divisors (22961757).

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

18202275 is a wasteful number, since it uses less digits than its factorization.

18202275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 18202275 is about 4266.4124273211. The cubic root of 18202275 is about 263.0521710224.

It can be divided in two parts, 1820 and 2275, that added together give a triangular number (4095 = T₉₀).

The spelling of 18202275 in words is "eighteen million, two hundred two thousand, two hundred seventy-five".