2739428 has 6 divisors (see below), whose sum is σ = 4794006. Its totient is φ = 1369712.

The previous prime is 2739421. The next prime is 2739433. The reversal of 2739428 is 8249372.

2739428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2696164 + 43264 = 1642^2 + 208^2 .

It is not an unprimeable number, because it can be changed into a prime (2739421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 342425 + ... + 342432.

It is an arithmetic number, because the mean of its divisors is an integer number (799001).

2^2739428 is an apocalyptic number.

It is an amenable number.

2739428 is a deficient number, since it is larger than the sum of its proper divisors (2054578).

2739428 is a wasteful number, since it uses less digits than its factorization.

2739428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684861 (or 684859 counting only the distinct ones).

The product of its digits is 24192, while the sum is 35.

The square root of 2739428 is about 1655.1217477878. The cubic root of 2739428 is about 139.9222016733.

The spelling of 2739428 in words is "two million, seven hundred thirty-nine thousand, four hundred twenty-eight".