43749475 has 24 divisors (see below), whose sum is σ = 67638528. Its totient is φ = 27271200.

The previous prime is 43749437. The next prime is 43749479. The reversal of 43749475 is 57494734.

It is not a de Polignac number, because 43749475 - 2¹⁷ = 43618403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43749479) 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, 9439 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (2818272).

Almost surely, 2^43749475 is an apocalyptic number.

43749475 is a deficient number, since it is larger than the sum of its proper divisors (23889053).

43749475 is a wasteful number, since it uses less digits than its factorization.

43749475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22755 (or 22750 counting only the distinct ones).

The product of its digits is 423360, while the sum is 43.

The square root of 43749475 is about 6614.3385912728. The cubic root of 43749475 is about 352.3635271379.

The spelling of 43749475 in words is "forty-three million, seven hundred forty-nine thousand, four hundred seventy-five".