3421455240 has 256 divisors, whose sum is σ = 12143001600. Its totient is φ = 755030016.

The previous prime is 3421455223. The next prime is 3421455251. The reversal of 3421455240 is 425541243.

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 = 3421455198 and 3421455207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3118372 + ... + 3119468.

It is an arithmetic number, because the mean of its divisors is an integer number (47433600).

Almost surely, 2^3421455240 is an apocalyptic number.

3421455240 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 3421455240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6071500800).

3421455240 is an abundant number, since it is smaller than the sum of its proper divisors (8721546360).

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

3421455240 is a wasteful number, since it uses less digits than its factorization.

3421455240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 3421455240 is about 58493.2067850618. The cubic root of 3421455240 is about 1506.8509200704.

Adding to 3421455240 its reverse (425541243), we get a palindrome (3846996483).

The spelling of 3421455240 in words is "three billion, four hundred twenty-one million, four hundred fifty-five thousand, two hundred forty".