2643420 has 48 divisors (see below), whose sum is σ = 7973280. Its totient is φ = 650496.

The previous prime is 2643397. The next prime is 2643427. The reversal of 2643420 is 243462.

2643420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2643427) 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 15 ways as a sum of consecutive naturals, for example, 915 + ... + 2474.

It is an arithmetic number, because the mean of its divisors is an integer number (166110).

2^2643420 is an apocalyptic number.

2643420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643420 is an abundant number, since it is smaller than the sum of its proper divisors (5329860).

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

2643420 is a wasteful number, since it uses less digits than its factorization.

2643420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414 (or 3412 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 2643420 is about 1625.8597725511. The cubic root of 2643420 is about 138.2681197753.

Adding to 2643420 its reverse (243462), we get a palindrome (2886882).

The spelling of 2643420 in words is "two million, six hundred forty-three thousand, four hundred twenty".