187922041440 has 192 divisors, whose sum is σ = 712125872640. Its totient is φ = 40692879360.

The previous prime is 187922041403. The next prime is 187922041469. The reversal of 187922041440 is 44140229781.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 187922041392 and 187922041401.

It is a congruent number.

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, 1407981 + ... + 1535660.

It is an arithmetic number, because the mean of its divisors is an integer number (3708988920).

Almost surely, 2^187922041440 is an apocalyptic number.

187922041440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187922041440 is an abundant number, since it is smaller than the sum of its proper divisors (524203831200).

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

187922041440 is a wasteful number, since it uses less digits than its factorization.

187922041440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943685 (or 2943677 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The spelling of 187922041440 in words is "one hundred eighty-seven billion, nine hundred twenty-two million, forty-one thousand, four hundred forty".