2836640 has 24 divisors (see below), whose sum is σ = 6701940. Its totient is φ = 1134592.

The previous prime is 2836633. The next prime is 2836651. The reversal of 2836640 is 466382.

It can be written as a sum of positive squares in 2 ways, for example, as 2835856 + 784 = 1684^2 + 28^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8705 + ... + 9024.

2^2836640 is an apocalyptic number.

2836640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2836640 is an abundant number, since it is smaller than the sum of its proper divisors (3865300).

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

2836640 is a wasteful number, since it uses less digits than its factorization.

2836640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17744 (or 17736 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 2836640 is about 1684.2327630111. The cubic root of 2836640 is about 141.5581052179.

The spelling of 2836640 in words is "two million, eight hundred thirty-six thousand, six hundred forty".