18880275 has 12 divisors (see below), whose sum is σ = 31215512. Its totient is φ = 10069440.

The previous prime is 18880241. The next prime is 18880297. The reversal of 18880275 is 57208881.

It is not a de Polignac number, because 18880275 - 2⁸ = 18880019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125794 + ... + 125943.

Almost surely, 2^18880275 is an apocalyptic number.

18880275 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18880275 is a deficient number, since it is larger than the sum of its proper divisors (12335237).

18880275 is a wasteful number, since it uses less digits than its factorization.

18880275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251750 (or 251745 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 18880275 is about 4345.1438411173. The cubic root of 18880275 is about 266.2785020954.

The spelling of 18880275 in words is "eighteen million, eight hundred eighty thousand, two hundred seventy-five".