2620724 has 6 divisors (see below), whose sum is σ = 4586274. Its totient is φ = 1310360.

The previous prime is 2620663. The next prime is 2620741. The reversal of 2620724 is 4270262.

It can be written as a sum of positive squares in only one way, i.e., 1737124 + 883600 = 1318^2 + 940^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2620724.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327587 + ... + 327594.

It is an arithmetic number, because the mean of its divisors is an integer number (764379).

2^2620724 is an apocalyptic number.

It is an amenable number.

2620724 is a deficient number, since it is larger than the sum of its proper divisors (1965550).

2620724 is a wasteful number, since it uses less digits than its factorization.

2620724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655185 (or 655183 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 2620724 is about 1618.8650345226. The cubic root of 2620724 is about 137.8712655095.

Adding to 2620724 its reverse (4270262), we get a palindrome (6890986).

The spelling of 2620724 in words is "two million, six hundred twenty thousand, seven hundred twenty-four".