4390323028 has 48 divisors (see below), whose sum is σ = 9495506944. Its totient is φ = 1729589760.

The previous prime is 4390322971. The next prime is 4390323029. The reversal of 4390323028 is 8203230934.

It is a junction number, because it is equal to n+sod(n) for n = 4390322984 and 4390323002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390323029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62701 + ... + 112747.

Almost surely, 2^4390323028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4390323028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4747753472).

4390323028 is an abundant number, since it is smaller than the sum of its proper divisors (5105183916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4390323028 is a wasteful number, since it uses less digits than its factorization.

4390323028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50312 (or 50310 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 4390323028 is about 66259.5127359083. The cubic root of 4390323028 is about 1637.4403641471.

The spelling of 4390323028 in words is "four billion, three hundred ninety million, three hundred twenty-three thousand, twenty-eight".