18274950 has 48 divisors (see below), whose sum is σ = 50361360. Its totient is φ = 4872960.

The previous prime is 18274943. The next prime is 18274951. The reversal of 18274950 is 5947281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18274951) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5419 + ... + 8118.

It is an arithmetic number, because the mean of its divisors is an integer number (1049195).

Almost surely, 2^18274950 is an apocalyptic number.

18274950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18274950 is an abundant number, since it is smaller than the sum of its proper divisors (32086410).

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

18274950 is a wasteful number, since it uses less digits than its factorization.

18274950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13558 (or 13547 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 18274950 is about 4274.9210519026. The cubic root of 18274950 is about 263.4017963670.

The spelling of 18274950 in words is "eighteen million, two hundred seventy-four thousand, nine hundred fifty".