188676540 has 360 divisors, whose sum is σ = 698957952. Its totient is φ = 42301440.

The previous prime is 188676539. The next prime is 188676559. The reversal of 188676540 is 45676881.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6086325 + ... + 6086355.

Almost surely, 2^188676540 is an apocalyptic number.

188676540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 188676540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (349478976).

188676540 is an abundant number, since it is smaller than the sum of its proper divisors (510281412).

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

188676540 is a wasteful number, since it uses less digits than its factorization.

188676540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 188676540 is about 13735.9579207276. The cubic root of 188676540 is about 573.5517833807.

The spelling of 188676540 in words is "one hundred eighty-eight million, six hundred seventy-six thousand, five hundred forty".