2779438152 has 16 divisors (see below), whose sum is σ = 6948595440. Its totient is φ = 926479376.

The previous prime is 2779438147. The next prime is 2779438157. The reversal of 2779438152 is 2518349772.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2779438147) and next prime (2779438157).

It is not an unprimeable number, because it can be changed into a prime (2779438157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57904938 + ... + 57904985.

It is an arithmetic number, because the mean of its divisors is an integer number (434287215).

Almost surely, 2^2779438152 is an apocalyptic number.

It is an amenable number.

2779438152 is an abundant number, since it is smaller than the sum of its proper divisors (4169157288).

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

2779438152 is a wasteful number, since it uses less digits than its factorization.

2779438152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115809932 (or 115809928 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 2779438152 is about 52720.3770092741. The cubic root of 2779438152 is about 1406.0011358208.

The spelling of 2779438152 in words is "two billion, seven hundred seventy-nine million, four hundred thirty-eight thousand, one hundred fifty-two".