2939540 has 12 divisors (see below), whose sum is σ = 6173076. Its totient is φ = 1175808.

The previous prime is 2939533. The next prime is 2939543. The reversal of 2939540 is 459392.

2939540 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 2 ways, for example, as 1607824 + 1331716 = 1268^2 + 1154^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2939497 and 2939506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2939543) 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 in 3 ways as a sum of consecutive naturals, for example, 73469 + ... + 73508.

It is an arithmetic number, because the mean of its divisors is an integer number (514423).

2^2939540 is an apocalyptic number.

2939540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2939540 is an abundant number, since it is smaller than the sum of its proper divisors (3233536).

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

2939540 is a wasteful number, since it uses less digits than its factorization.

2939540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146986 (or 146984 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 2939540 is about 1714.5086759769. The cubic root of 2939540 is about 143.2495032912.

The spelling of 2939540 in words is "two million, nine hundred thirty-nine thousand, five hundred forty".