2913940 has 24 divisors (see below), whose sum is σ = 6237000. Its totient is φ = 1143168.

The previous prime is 2913929. The next prime is 2913943. The reversal of 2913940 is 493192.

It is a happy number.

2913940 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 4 ways, for example, as 138384 + 2775556 = 372^2 + 1666^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2913899 and 2913908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2913943) 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 7 ways as a sum of consecutive naturals, for example, 315 + ... + 2434.

It is an arithmetic number, because the mean of its divisors is an integer number (259875).

2^2913940 is an apocalyptic number.

2913940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2913940 is an abundant number, since it is smaller than the sum of its proper divisors (3323060).

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

2913940 is a wasteful number, since it uses less digits than its factorization.

2913940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811 (or 2809 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 2913940 is about 1707.0266547421. The cubic root of 2913940 is about 142.8324443015.

The spelling of 2913940 in words is "two million, nine hundred thirteen thousand, nine hundred forty".