2544420 has 24 divisors (see below), whose sum is σ = 7124544. Its totient is φ = 678496.

The previous prime is 2544403. The next prime is 2544457. The reversal of 2544420 is 244452.

2544420 is nontrivially palindromic in base 14.

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, 21144 + ... + 21263.

It is an arithmetic number, because the mean of its divisors is an integer number (296856).

2^2544420 is an apocalyptic number.

2544420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2544420 is an abundant number, since it is smaller than the sum of its proper divisors (4580124).

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

2544420 is a wasteful number, since it uses less digits than its factorization.

2544420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42419 (or 42417 counting only the distinct ones).

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

The square root of 2544420 is about 1595.1238196454. The cubic root of 2544420 is about 136.5199959972.

Adding to 2544420 its reverse (244452), we get a palindrome (2788872).

Subtracting from 2544420 its reverse (244452), we obtain a cube (2299968 = 132³).

The spelling of 2544420 in words is "two million, five hundred forty-four thousand, four hundred twenty".