187061380 has 96 divisors (see below), whose sum is σ = 445471488. Its totient is φ = 65395200.

The previous prime is 187061377. The next prime is 187061411. The reversal of 187061380 is 83160781.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 711129 + ... + 711391.

It is an arithmetic number, because the mean of its divisors is an integer number (4640328).

Almost surely, 2^187061380 is an apocalyptic number.

187061380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 187061380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222735744).

187061380 is an abundant number, since it is smaller than the sum of its proper divisors (258410108).

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

187061380 is a wasteful number, since it uses less digits than its factorization.

187061380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 187061380 is about 13677.0384221146. The cubic root of 187061380 is about 571.9104665314.

The spelling of 187061380 in words is "one hundred eighty-seven million, sixty-one thousand, three hundred eighty".