2536220 has 24 divisors (see below), whose sum is σ = 5360208. Its totient is φ = 1008000.

The previous prime is 2536217. The next prime is 2536241. The reversal of 2536220 is 226352.

It is a happy number.

2536220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (20) 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 (20).

It is a junction number, because it is equal to n+sod(n) for n = 2536192 and 2536201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3920 + ... + 4520.

It is an arithmetic number, because the mean of its divisors is an integer number (223342).

2^2536220 is an apocalyptic number.

2536220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2536220 is an abundant number, since it is smaller than the sum of its proper divisors (2823988).

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

2536220 is a wasteful number, since it uses less digits than its factorization.

2536220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821 (or 819 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2536220 is about 1592.5514120430. The cubic root of 2536220 is about 136.3731820927.

The spelling of 2536220 in words is "two million, five hundred thirty-six thousand, two hundred twenty".