18834494 has 16 divisors (see below), whose sum is σ = 32508000. Its totient is φ = 8016864.

The previous prime is 18834467. The next prime is 18834509. The reversal of 18834494 is 49443881.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2429 + ... + 6600.

It is an arithmetic number, because the mean of its divisors is an integer number (2031750).

Almost surely, 2^18834494 is an apocalyptic number.

18834494 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18834494 is a deficient number, since it is larger than the sum of its proper divisors (13673506).

18834494 is a wasteful number, since it uses less digits than its factorization.

18834494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9187.

The product of its digits is 110592, while the sum is 41.

The square root of 18834494 is about 4339.8725787746. The cubic root of 18834494 is about 266.0631033509.

Subtracting from 18834494 its sum of digits (41), we obtain a triangular number (18834453 = T₆₁₃₇).

The spelling of 18834494 in words is "eighteen million, eight hundred thirty-four thousand, four hundred ninety-four".