2449278 has 40 divisors (see below), whose sum is σ = 5915448. Its totient is φ = 752976.

The previous prime is 2449277. The next prime is 2449297. The reversal of 2449278 is 8729442.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449273) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1525 + ... + 2687.

2^2449278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2449278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2957724).

2449278 is an abundant number, since it is smaller than the sum of its proper divisors (3466170).

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

2449278 is a wasteful number, since it uses less digits than its factorization.

2449278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190 (or 1181 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 2449278 is about 1565.0169328157. The cubic root of 2449278 is about 134.7967311297.

The spelling of 2449278 in words is "two million, four hundred forty-nine thousand, two hundred seventy-eight".