45943409 has 4 divisors (see below), whose sum is σ = 45974016. Its totient is φ = 45912804.

The previous prime is 45943357. The next prime is 45943423. The reversal of 45943409 is 90434954.

45943409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 a cyclic number.

It is not a de Polignac number, because 45943409 - 2⁸ = 45943153 is a prime.

It is a super-2 number, since 2×45943409² = 4221593661082562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45943439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12929 + ... + 16094.

It is an arithmetic number, because the mean of its divisors is an integer number (11493504).

Almost surely, 2^45943409 is an apocalyptic number.

It is an amenable number.

45943409 is a deficient number, since it is larger than the sum of its proper divisors (30607).

45943409 is a wasteful number, since it uses less digits than its factorization.

45943409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30606.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 45943409 is about 6778.1567553429. The cubic root of 45943409 is about 358.1577932827.

The spelling of 45943409 in words is "forty-five million, nine hundred forty-three thousand, four hundred nine".