43087860 has 72 divisors (see below), whose sum is σ = 138397896. Its totient is φ = 10813440.

The previous prime is 43087831. The next prime is 43087871. The reversal of 43087860 is 6878034.

It can be written as a sum of positive squares in 4 ways, for example, as 15776784 + 27311076 = 3972^2 + 5226^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3981 + ... + 10100.

It is an arithmetic number, because the mean of its divisors is an integer number (1922193).

Almost surely, 2^43087860 is an apocalyptic number.

It is an amenable number.

43087860 is an abundant number, since it is smaller than the sum of its proper divisors (95310036).

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

43087860 is a wasteful number, since it uses less digits than its factorization.

43087860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14113 (or 14108 counting only the distinct ones).

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

The square root of 43087860 is about 6564.1343679117. The cubic root of 43087860 is about 350.5782549901.

The spelling of 43087860 in words is "forty-three million, eighty-seven thousand, eight hundred sixty".