3045440 has 56 divisors (see below), whose sum is σ = 7510272. Its totient is φ = 1175040.

The previous prime is 3045437. The next prime is 3045443. The reversal of 3045440 is 445403.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3045437) and next prime (3045443).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3045443) 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, 9767 + ... + 10073.

It is an arithmetic number, because the mean of its divisors is an integer number (134112).

Almost surely, 2^3045440 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 3045440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3755136).

3045440 is an abundant number, since it is smaller than the sum of its proper divisors (4464832).

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

3045440 is a wasteful number, since it uses less digits than its factorization.

3045440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 3045440 is about 1745.1189071235. The cubic root of 3045440 is about 144.9494869631.

The spelling of 3045440 in words is "three million, forty-five thousand, four hundred forty".