18954460 has 24 divisors (see below), whose sum is σ = 45491040. Its totient is φ = 6498624.

The previous prime is 18954451. The next prime is 18954493. The reversal of 18954460 is 6445981.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67555 + ... + 67834.

It is an arithmetic number, because the mean of its divisors is an integer number (1895460).

Almost surely, 2^18954460 is an apocalyptic number.

18954460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18954460 is an abundant number, since it is smaller than the sum of its proper divisors (26536580).

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

18954460 is a wasteful number, since it uses less digits than its factorization.

18954460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135405 (or 135403 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 18954460 is about 4353.6720133699. The cubic root of 18954460 is about 266.6268030689.

The spelling of 18954460 in words is "eighteen million, nine hundred fifty-four thousand, four hundred sixty".