18260242 has 48 divisors (see below), whose sum is σ = 37461312. Its totient is φ = 6562080.

The previous prime is 18260239. The next prime is 18260243. The reversal of 18260242 is 24206281.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (18260243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13363 + ... + 14665.

It is an arithmetic number, because the mean of its divisors is an integer number (780444).

Almost surely, 2^18260242 is an apocalyptic number.

18260242 is an abundant number, since it is smaller than the sum of its proper divisors (19201070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18260242 is a wasteful number, since it uses less digits than its factorization.

18260242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 18260242 is about 4273.2004399513. The cubic root of 18260242 is about 263.3311139410.

The spelling of 18260242 in words is "eighteen million, two hundred sixty thousand, two hundred forty-two".