4390805073 has 4 divisors (see below), whose sum is σ = 5854406768. Its totient is φ = 2927203380.

The previous prime is 4390805051. The next prime is 4390805077. The reversal of 4390805073 is 3705080934.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-4390805073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4390805077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 731800843 + ... + 731800848.

It is an arithmetic number, because the mean of its divisors is an integer number (1463601692).

Almost surely, 2^4390805073 is an apocalyptic number.

It is an amenable number.

4390805073 is a deficient number, since it is larger than the sum of its proper divisors (1463601695).

4390805073 is a wasteful number, since it uses less digits than its factorization.

4390805073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1463601694.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 4390805073 is about 66263.1501892266. The cubic root of 4390805073 is about 1637.5002907212.

It can be divided in two parts, 439080 and 5073, that added together give a triangular number (444153 = T₉₄₂).

The spelling of 4390805073 in words is "four billion, three hundred ninety million, eight hundred five thousand, seventy-three".