2478344 has 16 divisors (see below), whose sum is σ = 5069520. Its totient is φ = 1126480.

The previous prime is 2478337. The next prime is 2478347. The reversal of 2478344 is 4438742.

It is a super-2 number, since 2×2478344² = 12284377964672, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2¹⁹ + 4⁷ + 7⁷ + 8 + 3² + 4⁸ + 4¹⁰ .

It is a self number, because there is not a number n which added to its sum of digits gives 2478344.

It is not an unprimeable number, because it can be changed into a prime (2478347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13994 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (316845).

2^2478344 is an apocalyptic number.

It is an amenable number.

2478344 is an abundant number, since it is smaller than the sum of its proper divisors (2591176).

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

2478344 is a wasteful number, since it uses less digits than its factorization.

2478344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28180 (or 28176 counting only the distinct ones).

The product of its digits is 21504, while the sum is 32.

The square root of 2478344 is about 1574.2757064758. The cubic root of 2478344 is about 135.3278542652.

The spelling of 2478344 in words is "two million, four hundred seventy-eight thousand, three hundred forty-four".