4415939640 has 256 divisors, whose sum is σ = 17278387200. Its totient is φ = 982015488.

The previous prime is 4415939639. The next prime is 4415939659. The reversal of 4415939640 is 469395144.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 271827 + ... + 287613.

It is an arithmetic number, because the mean of its divisors is an integer number (67493700).

Almost surely, 2^4415939640 is an apocalyptic number.

4415939640 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 4415939640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8639193600).

4415939640 is an abundant number, since it is smaller than the sum of its proper divisors (12862447560).

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

4415939640 is a wasteful number, since it uses less digits than its factorization.

4415939640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15851 (or 15841 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 4415939640 is about 66452.5367461619. The cubic root of 4415939640 is about 1640.6188968916.

The spelling of 4415939640 in words is "four billion, four hundred fifteen million, nine hundred thirty-nine thousand, six hundred forty".