18634914 has 32 divisors (see below), whose sum is σ = 42120000. Its totient is φ = 6105312.

The previous prime is 18634901. The next prime is 18634919. The reversal of 18634914 is 41943681.

18634914 is a `hidden beast` number, since 1 + 8 + 634 + 9 + 14 = 666.

It is not an unprimeable number, because it can be changed into a prime (18634919) 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, 262 + ... + 6110.

It is an arithmetic number, because the mean of its divisors is an integer number (1316250).

Almost surely, 2^18634914 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18634914, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21060000).

18634914 is an abundant number, since it is smaller than the sum of its proper divisors (23485086).

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

18634914 is a wasteful number, since it uses less digits than its factorization.

18634914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5919 (or 5913 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 18634914 is about 4316.8175777996. The cubic root of 18634914 is about 265.1199836402.

The spelling of 18634914 in words is "eighteen million, six hundred thirty-four thousand, nine hundred fourteen".