2620194388 has 12 divisors (see below), whose sum is σ = 5240388832. Its totient is φ = 1122940440.

The previous prime is 2620194383. The next prime is 2620194403. The reversal of 2620194388 is 8834910262.

2620194388 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620194383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46789158 + ... + 46789213.

Almost surely, 2^2620194388 is an apocalyptic number.

2620194388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2620194388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2620194388 is a wasteful number, since it uses less digits than its factorization.

2620194388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93578382 (or 93578380 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 2620194388 is about 51187.8343749762. The cubic root of 2620194388 is about 1378.6197759317.

The spelling of 2620194388 in words is "two billion, six hundred twenty million, one hundred ninety-four thousand, three hundred eighty-eight".