2520036 has 18 divisors (see below), whose sum is σ = 6370182. Its totient is φ = 840000.

The previous prime is 2520031. The next prime is 2520073. The reversal of 2520036 is 6300252.

It can be written as a sum of positive squares in only one way, i.e., 2433600 + 86436 = 1560^2 + 294^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (18) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2520031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34965 + ... + 35036.

It is an arithmetic number, because the mean of its divisors is an integer number (353899).

2^2520036 is an apocalyptic number.

It is an amenable number.

2520036 is an abundant number, since it is smaller than the sum of its proper divisors (3850146).

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

2520036 is a wasteful number, since it uses less digits than its factorization.

2520036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70011 (or 70006 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 2520036 is about 1587.4621255324. The cubic root of 2520036 is about 136.0824903248.

Adding to 2520036 its reverse (6300252), we get a palindrome (8820288).

The spelling of 2520036 in words is "two million, five hundred twenty thousand, thirty-six".