43490075 has 6 divisors (see below), whose sum is σ = 53927724. Its totient is φ = 34792040.

The previous prime is 43490039. The next prime is 43490081. The reversal of 43490075 is 57009434.

It is not a de Polignac number, because 43490075 - 2⁸ = 43489819 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 869777 + ... + 869826.

It is an arithmetic number, because the mean of its divisors is an integer number (8987954).

Almost surely, 2^43490075 is an apocalyptic number.

43490075 is a deficient number, since it is larger than the sum of its proper divisors (10437649).

43490075 is a wasteful number, since it uses less digits than its factorization.

43490075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1739613 (or 1739608 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 43490075 is about 6594.7005239055. The cubic root of 43490075 is about 351.6657332720.

It can be divided in two parts, 434 and 90075, that added together give a palindrome (90509).

The spelling of 43490075 in words is "forty-three million, four hundred ninety thousand, seventy-five".