188813946 has 64 divisors (see below), whose sum is σ = 412397568. Its totient is φ = 57465408.

The previous prime is 188813939. The next prime is 188813957. The reversal of 188813946 is 649318881.

It is a Smith number, since the sum of its digits (48) 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 = 188813895 and 188813904.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278560 + ... + 279236.

It is an arithmetic number, because the mean of its divisors is an integer number (6443712).

Almost surely, 2^188813946 is an apocalyptic number.

188813946 is an abundant number, since it is smaller than the sum of its proper divisors (223583622).

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

188813946 is a wasteful number, since it uses less digits than its factorization.

188813946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795.

The product of its digits is 331776, while the sum is 48.

The square root of 188813946 is about 13740.9587001781. The cubic root of 188813946 is about 573.6909816311.

The spelling of 188813946 in words is "one hundred eighty-eight million, eight hundred thirteen thousand, nine hundred forty-six".