2621224 has 16 divisors (see below), whose sum is σ = 4932000. Its totient is φ = 1306032.

The previous prime is 2621219. The next prime is 2621239. The reversal of 2621224 is 4221262.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4077 + ... + 4675.

It is an arithmetic number, because the mean of its divisors is an integer number (308250).

2^2621224 is an apocalyptic number.

It is an amenable number.

2621224 is a deficient number, since it is larger than the sum of its proper divisors (2310776).

2621224 is a wasteful number, since it uses less digits than its factorization.

2621224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152 (or 1148 counting only the distinct ones).

The product of its digits is 384, while the sum is 19.

The square root of 2621224 is about 1619.0194563377. The cubic root of 2621224 is about 137.8800329658.

Adding to 2621224 its reverse (4221262), we get a palindrome (6842486).

The spelling of 2621224 in words is "two million, six hundred twenty-one thousand, two hundred twenty-four".