18259142 has 24 divisors (see below), whose sum is σ = 30336768. Its totient is φ = 8235920.

The previous prime is 18259123. The next prime is 18259147. The reversal of 18259142 is 24195281.

It is a junction number, because it is equal to n+sod(n) for n = 18259099 and 18259108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18259147) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 47483 + ... + 47865.

It is an arithmetic number, because the mean of its divisors is an integer number (1264032).

Almost surely, 2^18259142 is an apocalyptic number.

18259142 is a deficient number, since it is larger than the sum of its proper divisors (12077626).

18259142 is a wasteful number, since it uses less digits than its factorization.

18259142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 604 (or 593 counting only the distinct ones).

The product of its digits is 5760, while the sum is 32.

The square root of 18259142 is about 4273.0717288620. The cubic root of 18259142 is about 263.3258261315.

The spelling of 18259142 in words is "eighteen million, two hundred fifty-nine thousand, one hundred forty-two".