2449772840 has 16 divisors (see below), whose sum is σ = 5511988980. Its totient is φ = 979909120.

The previous prime is 2449772839. The next prime is 2449772881. The reversal of 2449772840 is 482779442.

It can be written as a sum of positive squares in 2 ways, for example, as 2423986756 + 25786084 = 49234^2 + 5078^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30622121 + ... + 30622200.

Almost surely, 2^2449772840 is an apocalyptic number.

2449772840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2449772840 is an abundant number, since it is smaller than the sum of its proper divisors (3062216140).

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

2449772840 is a wasteful number, since it uses less digits than its factorization.

2449772840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61244332 (or 61244328 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 2449772840 is about 49495.1799673463. The cubic root of 2449772840 is about 1348.0580840642.

The spelling of 2449772840 in words is "two billion, four hundred forty-nine million, seven hundred seventy-two thousand, eight hundred forty".