4390321072 has 20 divisors (see below), whose sum is σ = 8509578616. Its totient is φ = 2194300800.

The previous prime is 4390321063. The next prime is 4390321073. The reversal of 4390321072 is 2701230934.

It is not an unprimeable number, because it can be changed into a prime (4390321073) 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, 10554 + ... + 94297.

Almost surely, 2^4390321072 is an apocalyptic number.

It is an amenable number.

4390321072 is a deficient number, since it is larger than the sum of its proper divisors (4119257544).

4390321072 is a wasteful number, since it uses less digits than its factorization.

4390321072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107476 (or 107470 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 4390321072 is about 66259.4979757619. The cubic root of 4390321072 is about 1637.4401209734.

The spelling of 4390321072 in words is "four billion, three hundred ninety million, three hundred twenty-one thousand, seventy-two".