43070494 has 4 divisors (see below), whose sum is σ = 64605744. Its totient is φ = 21535246.

The previous prime is 43070491. The next prime is 43070543. The reversal of 43070494 is 49407034.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49407034 = 2 ⋅24703517.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43070491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10767622 + ... + 10767625.

It is an arithmetic number, because the mean of its divisors is an integer number (16151436).

Almost surely, 2^43070494 is an apocalyptic number.

43070494 is a deficient number, since it is larger than the sum of its proper divisors (21535250).

43070494 is a wasteful number, since it uses less digits than its factorization.

43070494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21535249.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 43070494 is about 6562.8114402290. The cubic root of 43070494 is about 350.5311499968.

The spelling of 43070494 in words is "forty-three million, seventy thousand, four hundred ninety-four".