187234340 has 24 divisors (see below), whose sum is σ = 394148160. Its totient is φ = 74711648.

The previous prime is 187234337. The next prime is 187234343. The reversal of 187234340 is 43432781.

It is an interprime number because it is at equal distance from previous prime (187234337) and next prime (187234343).

It is a junction number, because it is equal to n+sod(n) for n = 187234297 and 187234306.

It is not an unprimeable number, because it can be changed into a prime (187234343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2792 + ... + 19551.

It is an arithmetic number, because the mean of its divisors is an integer number (16422840).

Almost surely, 2^187234340 is an apocalyptic number.

187234340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187234340 is an abundant number, since it is smaller than the sum of its proper divisors (206913820).

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

187234340 is a wasteful number, since it uses less digits than its factorization.

187234340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22771 (or 22769 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 187234340 is about 13683.3599674934. The cubic root of 187234340 is about 572.0866781453.

The spelling of 187234340 in words is "one hundred eighty-seven million, two hundred thirty-four thousand, three hundred forty".