2698310538 has 72 divisors (see below), whose sum is σ = 7419129120. Its totient is φ = 700857360.

The previous prime is 2698310521. The next prime is 2698310551. The reversal of 2698310538 is 8350138962.

It is a happy number.

2698310538 is a `hidden beast` number, since 26 + 9 + 83 + 10 + 538 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2698310493 and 2698310502.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 129358 + ... + 148761.

It is an arithmetic number, because the mean of its divisors is an integer number (103043460).

Almost surely, 2^2698310538 is an apocalyptic number.

2698310538 is an abundant number, since it is smaller than the sum of its proper divisors (4720818582).

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

2698310538 is a wasteful number, since it uses less digits than its factorization.

2698310538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278152 (or 278142 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 2698310538 is about 51945.2648275086. The cubic root of 2698310538 is about 1392.1861528939.

It can be divided in two parts, 2698 and 310538, that added together give a triangular number (313236 = T₇₉₁).

The spelling of 2698310538 in words is "two billion, six hundred ninety-eight million, three hundred ten thousand, five hundred thirty-eight".