2653440 has 72 divisors (see below), whose sum is σ = 8486688. Its totient is φ = 706560.

The previous prime is 2653433. The next prime is 2653459. The reversal of 2653440 is 443562.

2653440 is digitally balanced in base 5, 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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2653440.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3495 + ... + 4185.

2^2653440 is an apocalyptic number.

2653440 is a gapful number since it is divisible by the number (20) 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 2653440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4243344).

2653440 is an abundant number, since it is smaller than the sum of its proper divisors (5833248).

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

2653440 is an equidigital number, since it uses as much as digits as its factorization.

2653440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 2653440 is about 1628.9383045407. The cubic root of 2653440 is about 138.4426032986.

The spelling of 2653440 in words is "two million, six hundred fifty-three thousand, four hundred forty".