18492428 has 6 divisors (see below), whose sum is σ = 32361756. Its totient is φ = 9246212.

The previous prime is 18492427. The next prime is 18492431. The reversal of 18492428 is 82429481.

It is a junction number, because it is equal to n+sod(n) for n = 18492391 and 18492400.

It is not an unprimeable number, because it can be changed into a prime (18492427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2311550 + ... + 2311557.

It is an arithmetic number, because the mean of its divisors is an integer number (5393626).

Almost surely, 2^18492428 is an apocalyptic number.

It is an amenable number.

18492428 is a deficient number, since it is larger than the sum of its proper divisors (13869328).

18492428 is a wasteful number, since it uses less digits than its factorization.

18492428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623111 (or 4623109 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 18492428 is about 4300.2823163137. The cubic root of 18492428 is about 264.4425352487.

The spelling of 18492428 in words is "eighteen million, four hundred ninety-two thousand, four hundred twenty-eight".