188425842 has 32 divisors (see below), whose sum is σ = 417256704. Its totient is φ = 56245200.

The previous prime is 188425837. The next prime is 188425849. The reversal of 188425842 is 248524881.

It is a junction number, because it is equal to n+sod(n) for n = 188425794 and 188425803.

It is not an unprimeable number, because it can be changed into a prime (188425849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16884 + ... + 25727.

It is an arithmetic number, because the mean of its divisors is an integer number (13039272).

Almost surely, 2^188425842 is an apocalyptic number.

188425842 is an abundant number, since it is smaller than the sum of its proper divisors (228830862).

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

188425842 is a wasteful number, since it uses less digits than its factorization.

188425842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42694.

The product of its digits is 163840, while the sum is 42.

The square root of 188425842 is about 13726.8292770035. The cubic root of 188425842 is about 573.2976411739.

The spelling of 188425842 in words is "one hundred eighty-eight million, four hundred twenty-five thousand, eight hundred forty-two".