43085512 has 16 divisors (see below), whose sum is σ = 81423360. Its totient is φ = 21372624.

The previous prime is 43085491. The next prime is 43085551. The reversal of 43085512 is 21558034.

It is a super-2 number, since 2×43085512² = 3712722688604288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20188 + ... + 22219.

It is an arithmetic number, because the mean of its divisors is an integer number (5088960).

Almost surely, 2^43085512 is an apocalyptic number.

It is an amenable number.

43085512 is a deficient number, since it is larger than the sum of its proper divisors (38337848).

43085512 is a wasteful number, since it uses less digits than its factorization.

43085512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42540 (or 42536 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

The square root of 43085512 is about 6563.9555147792. The cubic root of 43085512 is about 350.5718868182.

The spelling of 43085512 in words is "forty-three million, eighty-five thousand, five hundred twelve".