187240240 has 180 divisors, whose sum is σ = 517123152. Its totient is φ = 62881280.

The previous prime is 187240223. The next prime is 187240253. The reversal of 187240240 is 42042781.

187240240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 187240199 and 187240208.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 6456546 + ... + 6456574.

Almost surely, 2^187240240 is an apocalyptic number.

187240240 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 187240240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258561576).

187240240 is an abundant number, since it is smaller than the sum of its proper divisors (329882912).

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

187240240 is a wasteful number, since it uses less digits than its factorization.

187240240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116 (or 70 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 187240240 is about 13683.5755561184. The cubic root of 187240240 is about 572.0926871497.

The spelling of 187240240 in words is "one hundred eighty-seven million, two hundred forty thousand, two hundred forty".