3045840 has 160 divisors (see below), whose sum is σ = 11308800. Its totient is φ = 677376.

The previous prime is 3045811. The next prime is 3045853. The reversal of 3045840 is 485403.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 3045840.

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, 82302 + ... + 82338.

It is an arithmetic number, because the mean of its divisors is an integer number (70680).

Almost surely, 2^3045840 is an apocalyptic number.

3045840 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 3045840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5654400).

3045840 is an abundant number, since it is smaller than the sum of its proper divisors (8262960).

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

3045840 is a wasteful number, since it uses less digits than its factorization.

3045840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 3045840 is about 1745.2335087317. The cubic root of 3045840 is about 144.9558327628.

The spelling of 3045840 in words is "three million, forty-five thousand, eight hundred forty".