3123040 has 48 divisors (see below), whose sum is σ = 7484400. Its totient is φ = 1231360.

The previous prime is 3123037. The next prime is 3123061. The reversal of 3123040 is 403213.

It is a self number, because there is not a number n which added to its sum of digits gives 3123040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20886 + ... + 21034.

It is an arithmetic number, because the mean of its divisors is an integer number (155925).

Almost surely, 2^3123040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3742200).

3123040 is an abundant number, since it is smaller than the sum of its proper divisors (4361360).

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

3123040 is a wasteful number, since it uses less digits than its factorization.

3123040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 287 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 3123040 is about 1767.2124942972. The cubic root of 3123040 is about 146.1703147860.

Adding to 3123040 its reverse (403213), we get a palindrome (3526253).

The spelling of 3123040 in words is "three million, one hundred twenty-three thousand, forty".