2779480000 has 140 divisors (see below), whose sum is σ = 7519961592. Its totient is φ = 1010560000.

The previous prime is 2779479949. The next prime is 2779480009. The reversal of 2779480000 is 849772.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2779480009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 436842 + ... + 443158.

Almost surely, 2^2779480000 is an apocalyptic number.

2779480000 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 2779480000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3759980796).

2779480000 is an abundant number, since it is smaller than the sum of its proper divisors (4740481592).

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

2779480000 is an equidigital number, since it uses as much as digits as its factorization.

2779480000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6360 (or 6335 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 2779480000 is about 52720.7738941681. The cubic root of 2779480000 is about 1406.0081921678.

The spelling of 2779480000 in words is "two billion, seven hundred seventy-nine million, four hundred eighty thousand".