2420544 has 56 divisors (see below), whose sum is σ = 7323328. Its totient is φ = 691200.

The previous prime is 2420531. The next prime is 2420549. The reversal of 2420544 is 4450242.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a plaindrome in base 13.

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2420544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2420549) 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, 444 + ... + 2244.

2^2420544 is an apocalyptic number.

2420544 is a gapful number since it is divisible by the number (24) 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 2420544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3661664).

2420544 is an abundant number, since it is smaller than the sum of its proper divisors (4902784).

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

2420544 is a wasteful number, since it uses less digits than its factorization.

2420544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 2420544 is about 1555.8097570076. The cubic root of 2420544 is about 134.2675282018.

Adding to 2420544 its reverse (4450242), we get a palindrome (6870786).

The spelling of 2420544 in words is "two million, four hundred twenty thousand, five hundred forty-four".