2840628 has 36 divisors (see below), whose sum is σ = 7711872. Its totient is φ = 811440.

The previous prime is 2840627. The next prime is 2840647. The reversal of 2840628 is 8260482.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2840595 and 2840604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2840627) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1828 + ... + 3003.

2^2840628 is an apocalyptic number.

2840628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2840628 is an abundant number, since it is smaller than the sum of its proper divisors (4871244).

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

2840628 is a wasteful number, since it uses less digits than its factorization.

2840628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852 (or 4843 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 2840628 is about 1685.4162690564. The cubic root of 2840628 is about 141.6244124656.

The spelling of 2840628 in words is "two million, eight hundred forty thousand, six hundred twenty-eight".