3053440 has 64 divisors (see below), whose sum is σ = 7882560. Its totient is φ = 1124352.

The previous prime is 3053431. The next prime is 3053441. The reversal of 3053440 is 443503.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3053441) 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, 8137 + ... + 8503.

It is an arithmetic number, because the mean of its divisors is an integer number (123165).

Almost surely, 2^3053440 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 3053440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3941280).

3053440 is an abundant number, since it is smaller than the sum of its proper divisors (4829120).

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

3053440 is a wasteful number, since it uses less digits than its factorization.

3053440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399 (or 387 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 3053440 is about 1747.4095112480. The cubic root of 3053440 is about 145.0762975392.

Adding to 3053440 its reverse (443503), we get a palindrome (3496943).

The spelling of 3053440 in words is "three million, fifty-three thousand, four hundred forty".