2683640 has 32 divisors (see below), whose sum is σ = 6302880. Its totient is φ = 1026432.

The previous prime is 2683621. The next prime is 2683649. The reversal of 2683640 is 463862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2683649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539 + ... + 2378.

It is an arithmetic number, because the mean of its divisors is an integer number (196965).

2^2683640 is an apocalyptic number.

2683640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2683640 is an abundant number, since it is smaller than the sum of its proper divisors (3619240).

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

2683640 is a wasteful number, since it uses less digits than its factorization.

2683640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951 (or 2947 counting only the distinct ones).

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

The square root of 2683640 is about 1638.1819190798. The cubic root of 2683640 is about 138.9658491400.

The spelling of 2683640 in words is "two million, six hundred eighty-three thousand, six hundred forty".