187042338 has 64 divisors (see below), whose sum is σ = 478033920. Its totient is φ = 53102736.

The previous prime is 187042333. The next prime is 187042357. The reversal of 187042338 is 833240781.

It is not an unprimeable number, because it can be changed into a prime (187042333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61645 + ... + 64607.

It is an arithmetic number, because the mean of its divisors is an integer number (7469280).

Almost surely, 2^187042338 is an apocalyptic number.

187042338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 187042338, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239016960).

187042338 is an abundant number, since it is smaller than the sum of its proper divisors (290991582).

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

187042338 is a wasteful number, since it uses less digits than its factorization.

187042338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148 (or 3142 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 187042338 is about 13676.3422741609. The cubic root of 187042338 is about 571.8910599091.

The spelling of 187042338 in words is "one hundred eighty-seven million, forty-two thousand, three hundred thirty-eight".