18934454 has 32 divisors (see below), whose sum is σ = 36377856. Its totient is φ = 7175520.

The previous prime is 18934439. The next prime is 18934463. The reversal of 18934454 is 45443981.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4037 + ... + 7359.

It is an arithmetic number, because the mean of its divisors is an integer number (1136808).

Almost surely, 2^18934454 is an apocalyptic number.

18934454 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18934454 is a deficient number, since it is larger than the sum of its proper divisors (17443402).

18934454 is a wasteful number, since it uses less digits than its factorization.

18934454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380.

The product of its digits is 69120, while the sum is 38.

The square root of 18934454 is about 4351.3738060525. The cubic root of 18934454 is about 266.5329638773.

It can be divided in two parts, 189 and 34454, that added together give a palindrome (34643).

The spelling of 18934454 in words is "eighteen million, nine hundred thirty-four thousand, four hundred fifty-four".