2479422640 has 40 divisors (see below), whose sum is σ = 5780433600. Its totient is φ = 989054976.

The previous prime is 2479422629. The next prime is 2479422641. The reversal of 2479422640 is 462249742.

It is a happy number.

2479422640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2479422640² = 12295073255489139200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 2479422593 and 2479422602.

It is not an unprimeable number, because it can be changed into a prime (2479422641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12865 + ... + 71584.

It is an arithmetic number, because the mean of its divisors is an integer number (144510840).

Almost surely, 2^2479422640 is an apocalyptic number.

2479422640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2479422640 is an abundant number, since it is smaller than the sum of its proper divisors (3301010960).

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

2479422640 is a wasteful number, since it uses less digits than its factorization.

2479422640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84829 (or 84823 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 2479422640 is about 49793.8012206339. The cubic root of 2479422640 is about 1353.4748415585.

The spelling of 2479422640 in words is "two billion, four hundred seventy-nine million, four hundred twenty-two thousand, six hundred forty".