3122140440 has 128 divisors (see below), whose sum is σ = 10128706560. Its totient is φ = 766900224.

The previous prime is 3122140433. The next prime is 3122140453. The reversal of 3122140440 is 440412213.

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, 79599 + ... + 112161.

It is an arithmetic number, because the mean of its divisors is an integer number (79130520).

Almost surely, 2^3122140440 is an apocalyptic number.

3122140440 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 3122140440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5064353280).

3122140440 is an abundant number, since it is smaller than the sum of its proper divisors (7006566120).

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

3122140440 is a wasteful number, since it uses less digits than its factorization.

3122140440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32641 (or 32637 counting only the distinct ones).

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

The square root of 3122140440 is about 55876.1169015886. The cubic root of 3122140440 is about 1461.5627914609.

Adding to 3122140440 its reverse (440412213), we get a palindrome (3562552653).

The spelling of 3122140440 in words is "three billion, one hundred twenty-two million, one hundred forty thousand, four hundred forty".