18299492 has 6 divisors (see below), whose sum is σ = 32024118. Its totient is φ = 9149744.

The previous prime is 18299473. The next prime is 18299503. The reversal of 18299492 is 29499281.

It can be written as a sum of positive squares in only one way, i.e., 17757796 + 541696 = 4214^2 + 736^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2287433 + ... + 2287440.

It is an arithmetic number, because the mean of its divisors is an integer number (5337353).

Almost surely, 2^18299492 is an apocalyptic number.

It is an amenable number.

18299492 is a deficient number, since it is larger than the sum of its proper divisors (13724626).

18299492 is a wasteful number, since it uses less digits than its factorization.

18299492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4574877 (or 4574875 counting only the distinct ones).

The product of its digits is 93312, while the sum is 44.

The square root of 18299492 is about 4277.7905512075. The cubic root of 18299492 is about 263.5196537855.

The spelling of 18299492 in words is "eighteen million, two hundred ninety-nine thousand, four hundred ninety-two".