3122440 has 32 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 1240000.

The previous prime is 3122419. The next prime is 3122447. The reversal of 3122440 is 442213.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3122447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9885 + ... + 10195.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

Almost surely, 2^3122440 is an apocalyptic number.

It is an amenable number.

3122440 is an abundant number, since it is smaller than the sum of its proper divisors (3953720).

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

3122440 is a wasteful number, since it uses less digits than its factorization.

3122440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3122440 is about 1767.0427272706. The cubic root of 3122440 is about 146.1609534153.

Adding to 3122440 its reverse (442213), we get a palindrome (3564653).

The spelling of 3122440 in words is "three million, one hundred twenty-two thousand, four hundred forty".