18914456 has 32 divisors (see below), whose sum is σ = 39355200. Its totient is φ = 8449440.

The previous prime is 18914449. The next prime is 18914459. The reversal of 18914456 is 65441981.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18914459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3371 + ... + 7013.

It is an arithmetic number, because the mean of its divisors is an integer number (1229850).

Almost surely, 2^18914456 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18914456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19677600).

18914456 is an abundant number, since it is smaller than the sum of its proper divisors (20440744).

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

18914456 is a wasteful number, since it uses less digits than its factorization.

18914456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719 (or 3715 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 18914456 is about 4349.0753040158. The cubic root of 18914456 is about 266.4390961267.

The spelling of 18914456 in words is "eighteen million, nine hundred fourteen thousand, four hundred fifty-six".