187230340 has 48 divisors (see below), whose sum is σ = 430456320. Its totient is φ = 67841280.

The previous prime is 187230311. The next prime is 187230341. The reversal of 187230340 is 43032781.

It is a junction number, because it is equal to n+sod(n) for n = 187230299 and 187230308.

It is not an unprimeable number, because it can be changed into a prime (187230341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67501 + ... + 70219.

It is an arithmetic number, because the mean of its divisors is an integer number (8967840).

Almost surely, 2^187230340 is an apocalyptic number.

187230340 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 187230340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215228160).

187230340 is an abundant number, since it is smaller than the sum of its proper divisors (243225980).

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

187230340 is a wasteful number, since it uses less digits than its factorization.

187230340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3052 (or 3050 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 187230340 is about 13683.2138037816. The cubic root of 187230340 is about 572.0826041722.

The spelling of 187230340 in words is "one hundred eighty-seven million, two hundred thirty thousand, three hundred forty".