2449439280 has 360 divisors, whose sum is σ = 8825216400. Its totient is φ = 608560128.

The previous prime is 2449439243. The next prime is 2449439281. The reversal of 2449439280 is 829349442.

It is a happy number.

2449439280 is a `hidden beast` number, since 2 + 449 + 43 + 92 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2449439281) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22471866 + ... + 22471974.

It is an arithmetic number, because the mean of its divisors is an integer number (24514490).

Almost surely, 2^2449439280 is an apocalyptic number.

2449439280 is a gapful number since it is divisible by the number (20) 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 2449439280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4412608200).

2449439280 is an abundant number, since it is smaller than the sum of its proper divisors (6375777120).

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

2449439280 is a wasteful number, since it uses less digits than its factorization.

2449439280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 2449439280 is about 49491.8102315929. The cubic root of 2449439280 is about 1347.9968976204.

The spelling of 2449439280 in words is "two billion, four hundred forty-nine million, four hundred thirty-nine thousand, two hundred eighty".