186840052 has 48 divisors (see below), whose sum is σ = 383927040. Its totient is φ = 77905152.

The previous prime is 186840041. The next prime is 186840113. The reversal of 186840052 is 250048681.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202849 + ... + 203767.

It is an arithmetic number, because the mean of its divisors is an integer number (7998480).

Almost surely, 2^186840052 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 186840052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191963520).

186840052 is an abundant number, since it is smaller than the sum of its proper divisors (197086988).

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

186840052 is a wasteful number, since it uses less digits than its factorization.

186840052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1118 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 34.

The square root of 186840052 is about 13668.9448019955. The cubic root of 186840052 is about 571.6848191085.

The spelling of 186840052 in words is "one hundred eighty-six million, eight hundred forty thousand, fifty-two".