189800976 has 40 divisors (see below), whose sum is σ = 496535680. Its totient is φ = 62464896.

The previous prime is 189800953. The next prime is 189800983. The reversal of 189800976 is 679008981.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 21235 + ... + 28818.

It is an arithmetic number, because the mean of its divisors is an integer number (12413392).

Almost surely, 2^189800976 is an apocalyptic number.

189800976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

189800976 is an abundant number, since it is smaller than the sum of its proper divisors (306734704).

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

189800976 is a wasteful number, since it uses less digits than its factorization.

189800976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50143 (or 50137 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 189800976 is about 13776.8275012791. The cubic root of 189800976 is about 574.6889064509.

The spelling of 189800976 in words is "one hundred eighty-nine million, eight hundred thousand, nine hundred seventy-six".