185740842 has 16 divisors (see below), whose sum is σ = 424550592. Its totient is φ = 53068800.

The previous prime is 185740837. The next prime is 185740873. The reversal of 185740842 is 248047581.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 185740842.

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, 2211159 + ... + 2211242.

It is an arithmetic number, because the mean of its divisors is an integer number (26534412).

Almost surely, 2^185740842 is an apocalyptic number.

185740842 is an abundant number, since it is smaller than the sum of its proper divisors (238809750).

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

185740842 is a wasteful number, since it uses less digits than its factorization.

185740842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422413.

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 185740842 is about 13628.6771918628. The cubic root of 185740842 is about 570.5615088472.

The spelling of 185740842 in words is "one hundred eighty-five million, seven hundred forty thousand, eight hundred forty-two".