18283874 has 24 divisors (see below), whose sum is σ = 33303360. Its totient is φ = 7373376.

The previous prime is 18283861. The next prime is 18283877. The reversal of 18283874 is 47838281.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18283877) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1787 + ... + 6305.

It is an arithmetic number, because the mean of its divisors is an integer number (1387640).

Almost surely, 2^18283874 is an apocalyptic number.

18283874 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18283874 is a deficient number, since it is larger than the sum of its proper divisors (15019486).

18283874 is a wasteful number, since it uses less digits than its factorization.

18283874 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4562 (or 4545 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 18283874 is about 4275.9646864772. The cubic root of 18283874 is about 263.4446640651. Note that the first 3 decimals are identical.

The spelling of 18283874 in words is "eighteen million, two hundred eighty-three thousand, eight hundred seventy-four".