43464909 has 4 divisors (see below), whose sum is σ = 57953216. Its totient is φ = 28976604.

The previous prime is 43464893. The next prime is 43464919. The reversal of 43464909 is 90946434.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 43464909 - 2⁴ = 43464893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43464919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7244149 + ... + 7244154.

It is an arithmetic number, because the mean of its divisors is an integer number (14488304).

Almost surely, 2^43464909 is an apocalyptic number.

It is an amenable number.

43464909 is a deficient number, since it is larger than the sum of its proper divisors (14488307).

43464909 is a wasteful number, since it uses less digits than its factorization.

43464909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14488306.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 43464909 is about 6592.7922005778. The cubic root of 43464909 is about 351.5978884633.

The spelling of 43464909 in words is "forty-three million, four hundred sixty-four thousand, nine hundred nine".