18130496 has 14 divisors (see below), whose sum is σ = 35977830. Its totient is φ = 9065216.

The previous prime is 18130493. The next prime is 18130507. The reversal of 18130496 is 69403181.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12673600 + 5456896 = 3560^2 + 2336^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18130493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141581 + ... + 141708.

It is an arithmetic number, because the mean of its divisors is an integer number (2569845).

Almost surely, 2^18130496 is an apocalyptic number.

18130496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18130496 is a deficient number, since it is larger than the sum of its proper divisors (17847334).

18130496 is an equidigital number, since it uses as much as digits as its factorization.

18130496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283301 (or 283291 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 18130496 is about 4257.9920150230. The cubic root of 18130496 is about 262.7059414876.

The spelling of 18130496 in words is "eighteen million, one hundred thirty thousand, four hundred ninety-six".