18452342 has 4 divisors (see below), whose sum is σ = 27678516. Its totient is φ = 9226170.

The previous prime is 18452339. The next prime is 18452359. The reversal of 18452342 is 24325481.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24325481 = 359 ⋅67759.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4613084 + ... + 4613087.

It is an arithmetic number, because the mean of its divisors is an integer number (6919629).

Almost surely, 2^18452342 is an apocalyptic number.

18452342 is a deficient number, since it is larger than the sum of its proper divisors (9226174).

18452342 is an equidigital number, since it uses as much as digits as its factorization.

18452342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9226173.

The product of its digits is 7680, while the sum is 29.

The square root of 18452342 is about 4295.6189309574. The cubic root of 18452342 is about 264.2513198275.

The spelling of 18452342 in words is "eighteen million, four hundred fifty-two thousand, three hundred forty-two".