2449519920 has 80 divisors (see below), whose sum is σ = 8437242720. Its totient is φ = 653204736.

The previous prime is 2449519883. The next prime is 2449519927. The reversal of 2449519920 is 299159442.

2449519920 is a `hidden beast` number, since 2 + 4 + 49 + 519 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is not an unprimeable number, because it can be changed into a prime (2449519927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564859 + ... + 569178.

It is an arithmetic number, because the mean of its divisors is an integer number (105465534).

Almost surely, 2^2449519920 is an apocalyptic number.

2449519920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2449519920 is an abundant number, since it is smaller than the sum of its proper divisors (5987722800).

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

2449519920 is a wasteful number, since it uses less digits than its factorization.

2449519920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134059 (or 1134047 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 2449519920 is about 49492.6249051311. The cubic root of 2449519920 is about 1348.0116902954.

The spelling of 2449519920 in words is "two billion, four hundred forty-nine million, five hundred nineteen thousand, nine hundred twenty".