4809378920 has 16 divisors (see below), whose sum is σ = 10821102660. Its totient is φ = 1923751552.

The previous prime is 4809378883. The next prime is 4809378943. The reversal of 4809378920 is 298739084.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4477483396 + 331895524 = 66914^2 + 18218^2 .

It is a super-3 number, since 3×4809378920³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 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, 60117197 + ... + 60117276.

Almost surely, 2^4809378920 is an apocalyptic number.

4809378920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4809378920 is an abundant number, since it is smaller than the sum of its proper divisors (6011723740).

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

4809378920 is a wasteful number, since it uses less digits than its factorization.

4809378920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120234484 (or 120234480 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 4809378920 is about 69349.6857959717. The cubic root of 4809378920 is about 1687.9632946130.

The spelling of 4809378920 in words is "four billion, eight hundred nine million, three hundred seventy-eight thousand, nine hundred twenty".