43021485 has 36 divisors (see below), whose sum is σ = 80762292. Its totient is φ = 21176064.

The previous prime is 43021469. The next prime is 43021493. The reversal of 43021485 is 58412034.

It can be written as a sum of positive squares in 6 ways, for example, as 17589636 + 25431849 = 4194^2 + 5043^2 .

It is not a de Polignac number, because 43021485 - 2⁴ = 43021469 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4777 + ... + 10433.

It is an arithmetic number, because the mean of its divisors is an integer number (2243397).

Almost surely, 2^43021485 is an apocalyptic number.

43021485 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43021485 is a deficient number, since it is larger than the sum of its proper divisors (37740807).

43021485 is a wasteful number, since it uses less digits than its factorization.

43021485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5694 (or 5678 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 43021485 is about 6559.0765356108. The cubic root of 43021485 is about 350.3981455538.

The spelling of 43021485 in words is "forty-three million, twenty-one thousand, four hundred eighty-five".