18494025 has 48 divisors (see below), whose sum is σ = 34551360. Its totient is φ = 8646400.

The previous prime is 18493997. The next prime is 18494033. The reversal of 18494025 is 52049481.

It is not a de Polignac number, because 18494025 - 2¹⁰ = 18493001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23539 + ... + 24311.

It is an arithmetic number, because the mean of its divisors is an integer number (719820).

Almost surely, 2^18494025 is an apocalyptic number.

18494025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

18494025 is a deficient number, since it is larger than the sum of its proper divisors (16057335).

18494025 is a wasteful number, since it uses less digits than its factorization.

18494025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 18494025 is about 4300.4679977881. The cubic root of 18494025 is about 264.4501474197.

The spelling of 18494025 in words is "eighteen million, four hundred ninety-four thousand, twenty-five".