2771730 has 96 divisors (see below), whose sum is σ = 8176896. Its totient is φ = 646272.

The previous prime is 2771729. The next prime is 2771759. The reversal of 2771730 is 371772.

It is a junction number, because it is equal to n+sod(n) for n = 2771694 and 2771703.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26859 + ... + 26961.

It is an arithmetic number, because the mean of its divisors is an integer number (85176).

2^2771730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2771730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4088448).

2771730 is an abundant number, since it is smaller than the sum of its proper divisors (5405166).

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

2771730 is a wasteful number, since it uses less digits than its factorization.

2771730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2058, while the sum is 27.

The square root of 2771730 is about 1664.8513447152. The cubic root of 2771730 is about 140.4700188896.

Subtracting from 2771730 its product of nonzero digits (2058), we obtain a palindrome (2769672).

The spelling of 2771730 in words is "two million, seven hundred seventy-one thousand, seven hundred thirty".