18496836 has 30 divisors (see below), whose sum is σ = 48355230. Its totient is φ = 6165504.

The previous prime is 18496831. The next prime is 18496859. The reversal of 18496836 is 63869481.

It can be written as a sum of positive squares in only one way, i.e., 15256836 + 3240000 = 3906^2 + 1800^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 18496791 and 18496800.

It is not an unprimeable number, because it can be changed into a prime (18496831) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 28221 + ... + 28868.

It is an arithmetic number, because the mean of its divisors is an integer number (1611841).

Almost surely, 2^18496836 is an apocalyptic number.

It is an amenable number.

18496836 is an abundant number, since it is smaller than the sum of its proper divisors (29858394).

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

18496836 is a wasteful number, since it uses less digits than its factorization.

18496836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57105 (or 57094 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 18496836 is about 4300.7948102647. The cubic root of 18496836 is about 264.4635451108.

It can be divided in two parts, 184 and 96836, that added together give a triangular number (97020 = T₄₄₀).

The spelling of 18496836 in words is "eighteen million, four hundred ninety-six thousand, eight hundred thirty-six".