3214221240 has 128 divisors (see below), whose sum is σ = 9955249920. Its totient is φ = 829670400.

The previous prime is 3214221221. The next prime is 3214221251. The reversal of 3214221240 is 421224123.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642027 + ... + 647013.

It is an arithmetic number, because the mean of its divisors is an integer number (77775390).

Almost surely, 2^3214221240 is an apocalyptic number.

3214221240 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 3214221240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4977624960).

3214221240 is an abundant number, since it is smaller than the sum of its proper divisors (6741028680).

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

3214221240 is a wasteful number, since it uses less digits than its factorization.

3214221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173 (or 5169 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3214221240 is about 56694.1023387795. The cubic root of 3214221240 is about 1475.7923526017.

Adding to 3214221240 its reverse (421224123), we get a palindrome (3635445363).

The spelling of 3214221240 in words is "three billion, two hundred fourteen million, two hundred twenty-one thousand, two hundred forty".