3440370043620 has 144 divisors (see below), whose sum is σ = 10797153035760. Its totient is φ = 885672603648.

The previous prime is 3440370043619. The next prime is 3440370043703. The reversal of 3440370043620 is 263400730443.

It can be written as a sum of positive squares in 8 ways, for example, as 90086420736 + 3350283622884 = 300144^2 + 1830378^2 .

It is a super-2 number, since 2×3440370043620² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40762584 + ... + 40846896.

It is an arithmetic number, because the mean of its divisors is an integer number (74980229415).

Almost surely, 2^{3440370043620} is an apocalyptic number.

3440370043620 is a gapful number since it is divisible by the number (30) 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 3440370043620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5398576517880).

3440370043620 is an abundant number, since it is smaller than the sum of its proper divisors (7356782992140).

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

3440370043620 is a wasteful number, since it uses less digits than its factorization.

3440370043620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92174 (or 92169 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 36.

The spelling of 3440370043620 in words is "three trillion, four hundred forty billion, three hundred seventy million, forty-three thousand, six hundred twenty".