4390338988 has 48 divisors (see below), whose sum is σ = 8847433728. Its totient is φ = 1867320000.

The previous prime is 4390338977. The next prime is 4390338989. The reversal of 4390338988 is 8898330934.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (4390338989) 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, 3373938 + ... + 3375238.

It is an arithmetic number, because the mean of its divisors is an integer number (184321536).

Almost surely, 2^4390338988 is an apocalyptic number.

It is an amenable number.

4390338988 is an abundant number, since it is smaller than the sum of its proper divisors (4457094740).

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

4390338988 is a wasteful number, since it uses less digits than its factorization.

4390338988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2134 (or 2132 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 55.

The square root of 4390338988 is about 66259.6331713359. The cubic root of 4390338988 is about 1637.4423483228.

The spelling of 4390338988 in words is "four billion, three hundred ninety million, three hundred thirty-eight thousand, nine hundred eighty-eight".