2779340 has 12 divisors (see below), whose sum is σ = 5836656. Its totient is φ = 1111728.

The previous prime is 2779327. The next prime is 2779351. The reversal of 2779340 is 439772.

It is a happy number.

2779340 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2779297 and 2779306.

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, 69464 + ... + 69503.

It is an arithmetic number, because the mean of its divisors is an integer number (486388).

2^2779340 is an apocalyptic number.

2779340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2779340 is an abundant number, since it is smaller than the sum of its proper divisors (3057316).

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

2779340 is a wasteful number, since it uses less digits than its factorization.

2779340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138976 (or 138974 counting only the distinct ones).

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 2779340 is about 1667.1352674573. The cubic root of 2779340 is about 140.5984585300.

The spelling of 2779340 in words is "two million, seven hundred seventy-nine thousand, three hundred forty".