185398242 has 16 divisors (see below), whose sum is σ = 370930752. Its totient is φ = 61777040.

The previous prime is 185398217. The next prime is 185398267. The reversal of 185398242 is 242893581.

It is an interprime number because it is at equal distance from previous prime (185398217) and next prime (185398267).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 185398194 and 185398203.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26692 + ... + 32912.

It is an arithmetic number, because the mean of its divisors is an integer number (23183172).

Almost surely, 2^185398242 is an apocalyptic number.

185398242 is an abundant number, since it is smaller than the sum of its proper divisors (185532510).

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

185398242 is a wasteful number, since it uses less digits than its factorization.

185398242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11193.

The product of its digits is 138240, while the sum is 42.

The square root of 185398242 is about 13616.1023057261. The cubic root of 185398242 is about 570.2104916653.

The spelling of 185398242 in words is "one hundred eighty-five million, three hundred ninety-eight thousand, two hundred forty-two".