2620006420 has 12 divisors (see below), whose sum is σ = 5502013524. Its totient is φ = 1048002560.

The previous prime is 2620006393. The next prime is 2620006471. The reversal of 2620006420 is 246000262.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1634423184 + 985583236 = 40428^2 + 31394^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2620006391 and 2620006400.

It is a congruent 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, 65500141 + ... + 65500180.

It is an arithmetic number, because the mean of its divisors is an integer number (458501127).

Almost surely, 2^2620006420 is an apocalyptic number.

2620006420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2620006420 is an abundant number, since it is smaller than the sum of its proper divisors (2882007104).

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

2620006420 is a wasteful number, since it uses less digits than its factorization.

2620006420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131000330 (or 131000328 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2620006420 is about 51185.9982807799. The cubic root of 2620006420 is about 1378.5868085813.

Adding to 2620006420 its reverse (246000262), we get a palindrome (2866006682).

The spelling of 2620006420 in words is "two billion, six hundred twenty million, six thousand, four hundred twenty".