187052240 has 20 divisors (see below), whose sum is σ = 434896644. Its totient is φ = 74820864.

The previous prime is 187052237. The next prime is 187052249. The reversal of 187052240 is 42250781.

It can be written as a sum of positive squares in 2 ways, for example, as 129231424 + 57820816 = 11368^2 + 7604^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187052249) 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 3 ways as a sum of consecutive naturals, for example, 1168997 + ... + 1169156.

Almost surely, 2^187052240 is an apocalyptic number.

187052240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

187052240 is an abundant number, since it is smaller than the sum of its proper divisors (247844404).

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

187052240 is a wasteful number, since it uses less digits than its factorization.

187052240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2338166 (or 2338160 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 187052240 is about 13676.7042813684. The cubic root of 187052240 is about 571.9011516801.

The spelling of 187052240 in words is "one hundred eighty-seven million, fifty-two thousand, two hundred forty".