188854940 has 12 divisors (see below), whose sum is σ = 396595416. Its totient is φ = 75541968.

The previous prime is 188854933. The next prime is 188854949. The reversal of 188854940 is 49458881.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (188854949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4721354 + ... + 4721393.

It is an arithmetic number, because the mean of its divisors is an integer number (33049618).

Almost surely, 2^188854940 is an apocalyptic number.

188854940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

188854940 is an abundant number, since it is smaller than the sum of its proper divisors (207740476).

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

188854940 is a wasteful number, since it uses less digits than its factorization.

188854940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9442756 (or 9442754 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 47.

The square root of 188854940 is about 13742.4502909780. The cubic root of 188854940 is about 573.7324972550.

The spelling of 188854940 in words is "one hundred eighty-eight million, eight hundred fifty-four thousand, nine hundred forty".