3421432240 has 80 divisors (see below), whose sum is σ = 8444727360. Its totient is φ = 1284710400.

The previous prime is 3421432237. The next prime is 3421432241. The reversal of 3421432240 is 422341243.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×3421432240² = 23412397145822835200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3421432241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553165 + ... + 559315.

It is an arithmetic number, because the mean of its divisors is an integer number (105559092).

Almost surely, 2^3421432240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3421432240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4222363680).

3421432240 is an abundant number, since it is smaller than the sum of its proper divisors (5023295120).

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

3421432240 is a wasteful number, since it uses less digits than its factorization.

3421432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6590 (or 6584 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 3421432240 is about 58493.0101807045. The cubic root of 3421432240 is about 1506.8475435686.

Adding to 3421432240 its reverse (422341243), we get a palindrome (3843773483).

The spelling of 3421432240 in words is "three billion, four hundred twenty-one million, four hundred thirty-two thousand, two hundred forty".