2620628736 has 144 divisors (see below), whose sum is σ = 7655679360. Its totient is φ = 789237760.

The previous prime is 2620628729. The next prime is 2620628737. The reversal of 2620628736 is 6378260262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620628737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1511326 + ... + 1513058.

It is an arithmetic number, because the mean of its divisors is an integer number (53164440).

Almost surely, 2^2620628736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2620628736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3827839680).

2620628736 is an abundant number, since it is smaller than the sum of its proper divisors (5035050624).

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

2620628736 is a wasteful number, since it uses less digits than its factorization.

2620628736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1942 (or 1928 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 2620628736 is about 51192.0768869559. The cubic root of 2620628736 is about 1378.6959493714.

Adding to 2620628736 its reverse (6378260262), we get a palindrome (8998888998).

The spelling of 2620628736 in words is "two billion, six hundred twenty million, six hundred twenty-eight thousand, seven hundred thirty-six".