4445234040 has 160 divisors (see below), whose sum is σ = 14458110480. Its totient is φ = 1093367808.

The previous prime is 4445234021. The next prime is 4445234051. The reversal of 4445234040 is 404325444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4445233989 and 4445234007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3426672 + ... + 3427968.

Almost surely, 2^4445234040 is an apocalyptic number.

4445234040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4445234040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7229055240).

4445234040 is an abundant number, since it is smaller than the sum of its proper divisors (10012876440).

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

4445234040 is a wasteful number, since it uses less digits than its factorization.

4445234040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1363 (or 1320 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

The square root of 4445234040 is about 66672.5883703340. The cubic root of 4445234040 is about 1644.2387426262.

Adding to 4445234040 its reverse (404325444), we get a palindrome (4849559484).

The spelling of 4445234040 in words is "four billion, four hundred forty-five million, two hundred thirty-four thousand, forty".