70440043 has 8 divisors (see below), whose sum is σ = 72964080. Its totient is φ = 67922400.

The previous prime is 70440031. The next prime is 70440047. The reversal of 70440043 is 34004407.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70440043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70439996 and 70440023.

It is not an unprimeable number, because it can be changed into a prime (70440047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36796 + ... + 38662.

It is an arithmetic number, because the mean of its divisors is an integer number (9120510).

Almost surely, 2^70440043 is an apocalyptic number.

70440043 is a deficient number, since it is larger than the sum of its proper divisors (2524037).

70440043 is a wasteful number, since it uses less digits than its factorization.

70440043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3197.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 70440043 is about 8392.8566650456. The cubic root of 70440043 is about 412.9903184515.

The spelling of 70440043 in words is "seventy million, four hundred forty thousand, forty-three".