43885485 has 48 divisors (see below), whose sum is σ = 87699456. Its totient is φ = 19885824.

The previous prime is 43885477. The next prime is 43885487. The reversal of 43885485 is 58458834.

It is not a de Polignac number, because 43885485 - 2³ = 43885477 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 43885485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43885487) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 39457 + ... + 40553.

It is an arithmetic number, because the mean of its divisors is an integer number (1827072).

Almost surely, 2^43885485 is an apocalyptic number.

43885485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43885485 is a deficient number, since it is larger than the sum of its proper divisors (43813971).

43885485 is a wasteful number, since it uses less digits than its factorization.

43885485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242 (or 1239 counting only the distinct ones).

The product of its digits is 614400, while the sum is 45.

The square root of 43885485 is about 6624.6120641136. The cubic root of 43885485 is about 352.7282963554.

The spelling of 43885485 in words is "forty-three million, eight hundred eighty-five thousand, four hundred eighty-five".