2220537 has 8 divisors (see below), whose sum is σ = 3229920. Its totient is φ = 1345760.

The previous prime is 2220529. The next prime is 2220539. The reversal of 2220537 is 7350222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2220537 - 2³ = 2220529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2220539) 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, 33612 + ... + 33677.

It is an arithmetic number, because the mean of its divisors is an integer number (403740).

2^2220537 is an apocalyptic number.

It is an amenable number.

2220537 is a deficient number, since it is larger than the sum of its proper divisors (1009383).

2220537 is a wasteful number, since it uses less digits than its factorization.

2220537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67303.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 2220537 is about 1490.1466370797. The cubic root of 2220537 is about 130.4625925871.

Adding to 2220537 its reverse (7350222), we get a palindrome (9570759).

The spelling of 2220537 in words is "two million, two hundred twenty thousand, five hundred thirty-seven".