2840036 has 6 divisors (see below), whose sum is σ = 4970070. Its totient is φ = 1420016.

The previous prime is 2840027. The next prime is 2840039. The reversal of 2840036 is 6300482.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 649636 = 1480^2 + 806^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2839993 and 2840020.

It is not an unprimeable number, because it can be changed into a prime (2840039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 355001 + ... + 355008.

It is an arithmetic number, because the mean of its divisors is an integer number (828345).

2^2840036 is an apocalyptic number.

It is an amenable number.

2840036 is a deficient number, since it is larger than the sum of its proper divisors (2130034).

2840036 is a wasteful number, since it uses less digits than its factorization.

2840036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710013 (or 710011 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2840036 is about 1685.2406356363. The cubic root of 2840036 is about 141.6145733881.

The spelling of 2840036 in words is "two million, eight hundred forty thousand, thirty-six".