187099340 has 12 divisors (see below), whose sum is σ = 392908656. Its totient is φ = 74839728.

The previous prime is 187099337. The next prime is 187099361. The reversal of 187099340 is 43990781.

It is a happy number.

187099340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4677464 + ... + 4677503.

It is an arithmetic number, because the mean of its divisors is an integer number (32742388).

Almost surely, 2^187099340 is an apocalyptic number.

187099340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187099340 is an abundant number, since it is smaller than the sum of its proper divisors (205809316).

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

187099340 is a wasteful number, since it uses less digits than its factorization.

187099340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9354976 (or 9354974 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 187099340 is about 13678.4260790487. The cubic root of 187099340 is about 571.9491494724.

The spelling of 187099340 in words is "one hundred eighty-seven million, ninety-nine thousand, three hundred forty".