3061440 has 84 divisors (see below), whose sum is σ = 10539984. Its totient is φ = 815616.

The previous prime is 3061433. The next prime is 3061441. The reversal of 3061440 is 441603.

3061440 is digitally balanced in base 2 and base 5, because in such bases 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 (18).

It is not an unprimeable number, because it can be changed into a prime (3061441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2349 + ... + 3411.

It is an arithmetic number, because the mean of its divisors is an integer number (125476).

Almost surely, 2^3061440 is an apocalyptic number.

3061440 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 3061440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5269992).

3061440 is an abundant number, since it is smaller than the sum of its proper divisors (7478544).

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

3061440 is a wasteful number, since it uses less digits than its factorization.

3061440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086 (or 1073 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3061440 is about 1749.6971166462. The cubic root of 3061440 is about 145.2028868128.

The spelling of 3061440 in words is "three million, sixty-one thousand, four hundred forty".