2719278220 has 24 divisors (see below), whose sum is σ = 5712160608. Its totient is φ = 1087392000.

The previous prime is 2719278179. The next prime is 2719278223. The reversal of 2719278220 is 228729172.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (2719278223) 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, 57145 + ... + 93295.

It is an arithmetic number, because the mean of its divisors is an integer number (238006692).

Almost surely, 2^2719278220 is an apocalyptic number.

2719278220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2719278220 is an abundant number, since it is smaller than the sum of its proper divisors (2992882388).

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

2719278220 is a wasteful number, since it uses less digits than its factorization.

2719278220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39921 (or 39919 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2719278220 is about 52146.6990326329. The cubic root of 2719278220 is about 1395.7829257468.

The spelling of 2719278220 in words is "two billion, seven hundred nineteen million, two hundred seventy-eight thousand, two hundred twenty".