3421247040 has 84 divisors (see below), whose sum is σ = 11767674204. Its totient is φ = 912331776.

The previous prime is 3421247029. The next prime is 3421247041. The reversal of 3421247040 is 407421243.

It can be written as a sum of positive squares in 2 ways, for example, as 643535424 + 2777711616 = 25368^2 + 52704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3421246995 and 3421247013.

It is not an unprimeable number, because it can be changed into a prime (3421247041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 591087 + ... + 596846.

Almost surely, 2^3421247040 is an apocalyptic number.

3421247040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3421247040 is an abundant number, since it is smaller than the sum of its proper divisors (8346427164).

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

3421247040 is a wasteful number, since it uses less digits than its factorization.

3421247040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187956 (or 1187943 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 3421247040 is about 58491.4270641433. The cubic root of 3421247040 is about 1506.8203548378.

Adding to 3421247040 its reverse (407421243), we get a palindrome (3828668283).

The spelling of 3421247040 in words is "three billion, four hundred twenty-one million, two hundred forty-seven thousand, forty".