43394769 has 24 divisors (see below), whose sum is σ = 70053984. Its totient is φ = 25656000.

The previous prime is 43394731. The next prime is 43394773. The reversal of 43394769 is 96749334.

It is not a de Polignac number, because 43394769 - 2¹⁶ = 43329233 is a prime.

It is a super-2 number, since 2×43394769² = 3766211953126722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43394719) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1287 + ... + 9404.

It is an arithmetic number, because the mean of its divisors is an integer number (2918916).

Almost surely, 2^43394769 is an apocalyptic number.

It is an amenable number.

43394769 is a deficient number, since it is larger than the sum of its proper divisors (26659215).

43394769 is a wasteful number, since it uses less digits than its factorization.

43394769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10749 (or 10746 counting only the distinct ones).

The product of its digits is 489888, while the sum is 45.

The square root of 43394769 is about 6587.4706071451. The cubic root of 43394769 is about 351.4086603121.

The spelling of 43394769 in words is "forty-three million, three hundred ninety-four thousand, seven hundred sixty-nine".