4390788444 has 48 divisors (see below), whose sum is σ = 11735539200. Its totient is φ = 1251642816.

The previous prime is 4390788421. The next prime is 4390788449. The reversal of 4390788444 is 4448870934.

It is a happy number.

It is a super-2 number, since 2×4390788444² = 38558046319927882272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4390788449) 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, 22659 + ... + 96410.

It is an arithmetic number, because the mean of its divisors is an integer number (244490400).

Almost surely, 2^4390788444 is an apocalyptic number.

It is an amenable number.

4390788444 is an abundant number, since it is smaller than the sum of its proper divisors (7344750756).

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

4390788444 is a wasteful number, since it uses less digits than its factorization.

4390788444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119522 (or 119520 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 51.

The square root of 4390788444 is about 66263.0247121274. The cubic root of 4390788444 is about 1637.4982235204.

The spelling of 4390788444 in words is "four billion, three hundred ninety million, seven hundred eighty-eight thousand, four hundred forty-four".