188741040 has 80 divisors (see below), whose sum is σ = 599399136. Its totient is φ = 49100800.

The previous prime is 188741029. The next prime is 188741071. The reversal of 188741040 is 40147881.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 188740992 and 188741010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250 + ... + 19430.

Almost surely, 2^188741040 is an apocalyptic number.

188741040 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 188741040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299699568).

188741040 is an abundant number, since it is smaller than the sum of its proper divisors (410658096).

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

188741040 is a wasteful number, since it uses less digits than its factorization.

188741040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19238 (or 19232 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 33.

The square root of 188741040 is about 13738.3055723768. The cubic root of 188741040 is about 573.6171330974.

The spelling of 188741040 in words is "one hundred eighty-eight million, seven hundred forty-one thousand, forty".