187438132 has 36 divisors (see below), whose sum is σ = 398170080. Its totient is φ = 76836144.

The previous prime is 187438099. The next prime is 187438159. The reversal of 187438132 is 231834781.

It is a junction number, because it is equal to n+sod(n) for n = 187438091 and 187438100.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 16282 + ... + 25297.

It is an arithmetic number, because the mean of its divisors is an integer number (11060280).

Almost surely, 2^187438132 is an apocalyptic number.

It is an amenable number.

187438132 is an abundant number, since it is smaller than the sum of its proper divisors (210731948).

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

187438132 is a wasteful number, since it uses less digits than its factorization.

187438132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41620 (or 41611 counting only the distinct ones).

The product of its digits is 32256, while the sum is 37.

The square root of 187438132 is about 13690.8046512979. The cubic root of 187438132 is about 572.2941621908.

The spelling of 187438132 in words is "one hundred eighty-seven million, four hundred thirty-eight thousand, one hundred thirty-two".