45438943 has 8 divisors (see below), whose sum is σ = 52485840. Its totient is φ = 38878080.

The previous prime is 45438929. The next prime is 45438973. The reversal of 45438943 is 34983454.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45438943 - 2⁹ = 45438431 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 45438896 and 45438905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45438973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121308 + ... + 121681.

It is an arithmetic number, because the mean of its divisors is an integer number (6560730).

Almost surely, 2^45438943 is an apocalyptic number.

45438943 is a deficient number, since it is larger than the sum of its proper divisors (7046897).

45438943 is a wasteful number, since it uses less digits than its factorization.

45438943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243017.

The product of its digits is 207360, while the sum is 40.

The square root of 45438943 is about 6740.8414163219. The cubic root of 45438943 is about 356.8420892480.

The spelling of 45438943 in words is "forty-five million, four hundred thirty-eight thousand, nine hundred forty-three".