43278485 has 12 divisors (see below), whose sum is σ = 54813708. Its totient is φ = 32799168.

The previous prime is 43278457. The next prime is 43278497. The reversal of 43278485 is 58487234.

It can be written as a sum of positive squares in 2 ways, for example, as 17156164 + 26122321 = 4142^2 + 5111^2 .

It is not a de Polignac number, because 43278485 - 2¹² = 43274389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10184 + ... + 13793.

It is an arithmetic number, because the mean of its divisors is an integer number (4567809).

Almost surely, 2^43278485 is an apocalyptic number.

It is an amenable number.

43278485 is a deficient number, since it is larger than the sum of its proper divisors (11535223).

43278485 is a wasteful number, since it uses less digits than its factorization.

43278485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24020 (or 24001 counting only the distinct ones).

The product of its digits is 215040, while the sum is 41.

The square root of 43278485 is about 6578.6385369619. The cubic root of 43278485 is about 351.0944921907.

The spelling of 43278485 in words is "forty-three million, two hundred seventy-eight thousand, four hundred eighty-five".