3031020440 has 144 divisors (see below), whose sum is σ = 8428918320. Its totient is φ = 977894400.

The previous prime is 3031020439. The next prime is 3031020493. The reversal of 3031020440 is 440201303.

3031020440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 563765 + ... + 569115.

It is an arithmetic number, because the mean of its divisors is an integer number (58534155).

Almost surely, 2^3031020440 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 3031020440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4214459160).

3031020440 is an abundant number, since it is smaller than the sum of its proper divisors (5397897880).

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

3031020440 is a wasteful number, since it uses less digits than its factorization.

3031020440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410 (or 5382 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 3031020440 is about 55054.7040678633. The cubic root of 3031020440 is about 1447.2035583822.

Adding to 3031020440 its reverse (440201303), we get a palindrome (3471221743).

The spelling of 3031020440 in words is "three billion, thirty-one million, twenty thousand, four hundred forty".