2445144 has 64 divisors (see below), whose sum is σ = 6985440. Its totient is φ = 706560.

The previous prime is 2445139. The next prime is 2445173. The reversal of 2445144 is 4415442.

2445144 = 52² + 53² + ... + 195².

It is a happy number.

2445144 is digitally balanced in base 2, 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 congruent number.

It is an unprimeable number.

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, 5074 + ... + 5534.

2^2445144 is an apocalyptic number.

2445144 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 2445144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3492720).

2445144 is an abundant number, since it is smaller than the sum of its proper divisors (4540296).

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

2445144 is a wasteful number, since it uses less digits than its factorization.

2445144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 496 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 2445144 is about 1563.6956225557. The cubic root of 2445144 is about 134.7208497886.

The spelling of 2445144 in words is "two million, four hundred forty-five thousand, one hundred forty-four".