4442402040 has 64 divisors (see below), whose sum is σ = 13687414560. Its totient is φ = 1152622080.

The previous prime is 4442402009. The next prime is 4442402093. The reversal of 4442402040 is 402042444.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 4442402040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 495831 + ... + 504710.

Almost surely, 2^4442402040 is an apocalyptic number.

4442402040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4442402040 is an abundant number, since it is smaller than the sum of its proper divisors (9245012520).

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

4442402040 is a wasteful number, since it uses less digits than its factorization.

4442402040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000592 (or 1000588 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 24.

The square root of 4442402040 is about 66651.3468731128. The cubic root of 4442402040 is about 1643.8894941736.

Adding to 4442402040 its reverse (402042444), we get a palindrome (4844444484).

The spelling of 4442402040 in words is "four billion, four hundred forty-two million, four hundred two thousand, forty".