2890340 has 24 divisors (see below), whose sum is σ = 6427512. Its totient is φ = 1088000.

The previous prime is 2890319. The next prime is 2890369. The reversal of 2890340 is 430982.

It can be written as a sum of positive squares in 4 ways, for example, as 141376 + 2748964 = 376^2 + 1658^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3911 + ... + 4590.

It is an arithmetic number, because the mean of its divisors is an integer number (267813).

2^2890340 is an apocalyptic number.

2890340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2890340 is an abundant number, since it is smaller than the sum of its proper divisors (3537172).

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

2890340 is a wasteful number, since it uses less digits than its factorization.

2890340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8527 (or 8525 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2890340 is about 1700.0999970590. The cubic root of 2890340 is about 142.4457986130.

The spelling of 2890340 in words is "two million, eight hundred ninety thousand, three hundred forty".