2620549413 has 24 divisors (see below), whose sum is σ = 3954837120. Its totient is φ = 1668949920.

The previous prime is 2620549339. The next prime is 2620549433. The reversal of 2620549413 is 3149450262.

It is a happy number.

It is not a de Polignac number, because 2620549413 - 2⁹ = 2620548901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620549433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 163968 + ... + 179238.

It is an arithmetic number, because the mean of its divisors is an integer number (164784880).

Almost surely, 2^2620549413 is an apocalyptic number.

2620549413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2620549413 is a deficient number, since it is larger than the sum of its proper divisors (1334287707).

2620549413 is a wasteful number, since it uses less digits than its factorization.

2620549413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16129 (or 16126 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 2620549413 is about 51191.3021225286. The cubic root of 2620549413 is about 1378.6820387907.

Adding to 2620549413 its reverse (3149450262), we get a palindrome (5769999675).

The spelling of 2620549413 in words is "two billion, six hundred twenty million, five hundred forty-nine thousand, four hundred thirteen".