2620574838 has 24 divisors (see below), whose sum is σ = 6489042768. Its totient is φ = 748735632.

The previous prime is 2620574833. The next prime is 2620574933. The reversal of 2620574838 is 8384750262.

2620574838 is a `hidden beast` number, since 26 + 20 + 574 + 8 + 38 = 666.

2620574838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 2620574793 and 2620574802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2620574833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10398981 + ... + 10399232.

It is an arithmetic number, because the mean of its divisors is an integer number (270376782).

Almost surely, 2^2620574838 is an apocalyptic number.

2620574838 is an abundant number, since it is smaller than the sum of its proper divisors (3868467930).

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

2620574838 is a wasteful number, since it uses less digits than its factorization.

2620574838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20798228 (or 20798225 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The square root of 2620574838 is about 51191.5504551288. The cubic root of 2620574838 is about 1378.6864975094.

The spelling of 2620574838 in words is "two billion, six hundred twenty million, five hundred seventy-four thousand, eight hundred thirty-eight".