18983734 has 32 divisors (see below), whose sum is σ = 35811072. Its totient is φ = 7332000.

The previous prime is 18983729. The next prime is 18983737. The reversal of 18983734 is 43738981.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18983737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19704 + ... + 20644.

It is an arithmetic number, because the mean of its divisors is an integer number (1119096).

Almost surely, 2^18983734 is an apocalyptic number.

18983734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18983734 is a deficient number, since it is larger than the sum of its proper divisors (16827338).

18983734 is a wasteful number, since it uses less digits than its factorization.

18983734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092.

The product of its digits is 145152, while the sum is 43.

The square root of 18983734 is about 4357.0327058676. The cubic root of 18983734 is about 266.7639953752.

The spelling of 18983734 in words is "eighteen million, nine hundred eighty-three thousand, seven hundred thirty-four".