2620730 has 32 divisors (see below), whose sum is σ = 5581440. Its totient is φ = 866880.

The previous prime is 2620663. The next prime is 2620741. The reversal of 2620730 is 370262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1385 + ... + 2675.

It is an arithmetic number, because the mean of its divisors is an integer number (174420).

2^2620730 is an apocalyptic number.

2620730 is an abundant number, since it is smaller than the sum of its proper divisors (2960710).

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

2620730 is a wasteful number, since it uses less digits than its factorization.

2620730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 2620730 is about 1618.8668876717. The cubic root of 2620730 is about 137.8713707256.

Adding to 2620730 its reverse (370262), we get a palindrome (2990992).

The spelling of 2620730 in words is "two million, six hundred twenty thousand, seven hundred thirty".