43412985 has 144 divisors (see below), whose sum is σ = 101582208. Its totient is φ = 16727040.

The previous prime is 43412969. The next prime is 43412987. The reversal of 43412985 is 58921434.

It is not a de Polignac number, because 43412985 - 2⁴ = 43412969 is a prime.

It is a super-2 number, since 2×43412985² = 3769374533220450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (43412987) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 647922 + ... + 647988.

It is an arithmetic number, because the mean of its divisors is an integer number (705432).

Almost surely, 2^43412985 is an apocalyptic number.

43412985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43412985 is an abundant number, since it is smaller than the sum of its proper divisors (58169223).

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

43412985 is a wasteful number, since it uses less digits than its factorization.

43412985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124 (or 110 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 43412985 is about 6588.8530868430. The cubic root of 43412985 is about 351.4578241846.

The spelling of 43412985 in words is "forty-three million, four hundred twelve thousand, nine hundred eighty-five".