18249962 has 4 divisors (see below), whose sum is σ = 27374946. Its totient is φ = 9124980.

The previous prime is 18249947. The next prime is 18249997. The reversal of 18249962 is 26994281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 26994281 = 107 ⋅252283.

It can be written as a sum of positive squares in only one way, i.e., 15912121 + 2337841 = 3989^2 + 1529^2 .

It is a super-2 number, since 2×18249962² = 666122226002888, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4562489 + ... + 4562492.

Almost surely, 2^18249962 is an apocalyptic number.

18249962 is a deficient number, since it is larger than the sum of its proper divisors (9124984).

18249962 is an equidigital number, since it uses as much as digits as its factorization.

18249962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9124983.

The product of its digits is 62208, while the sum is 41.

The square root of 18249962 is about 4271.9974250929. The cubic root of 18249962 is about 263.2816886740.

The spelling of 18249962 in words is "eighteen million, two hundred forty-nine thousand, nine hundred sixty-two".