3250213440 has 112 divisors (see below), whose sum is σ = 10335841152. Its totient is φ = 865345536.

The previous prime is 3250213429. The next prime is 3250213441. The reversal of 3250213440 is 443120523.

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 3250213440.

It is not an unprimeable number, because it can be changed into a prime (3250213441) 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, 695592 + ... + 700248.

It is an arithmetic number, because the mean of its divisors is an integer number (92284296).

Almost surely, 2^3250213440 is an apocalyptic number.

3250213440 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 3250213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5167920576).

3250213440 is an abundant number, since it is smaller than the sum of its proper divisors (7085627712).

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

3250213440 is a wasteful number, since it uses less digits than its factorization.

3250213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404 (or 5394 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 3250213440 is about 57010.6432168591. The cubic root of 3250213440 is about 1481.2804599124.

Adding to 3250213440 its reverse (443120523), we get a palindrome (3693333963).

The spelling of 3250213440 in words is "three billion, two hundred fifty million, two hundred thirteen thousand, four hundred forty".