43049045 has 16 divisors (see below), whose sum is σ = 56134512. Its totient is φ = 31503360.

The previous prime is 43049011. The next prime is 43049101. The reversal of 43049045 is 54094034.

It can be written as a sum of positive squares in 8 ways, for example, as 14394436 + 28654609 = 3794^2 + 5353^2 .

It is not a de Polignac number, because 43049045 - 2¹⁰ = 43048021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 43048999 and 43049017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4415 + ... + 10275.

It is an arithmetic number, because the mean of its divisors is an integer number (3508407).

Almost surely, 2^43049045 is an apocalyptic number.

It is an amenable number.

43049045 is a deficient number, since it is larger than the sum of its proper divisors (13085467).

43049045 is a wasteful number, since it uses less digits than its factorization.

43049045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 43049045 is about 6561.1771047580. The cubic root of 43049045 is about 350.4729524517.

The spelling of 43049045 in words is "forty-three million, forty-nine thousand, forty-five".