4102688538 has 48 divisors (see below), whose sum is σ = 9831688776. Its totient is φ = 1228245120.

The previous prime is 4102688509. The next prime is 4102688539. The reversal of 4102688538 is 8358862014.

4102688538 is a `hidden beast` number, since 4 + 10 + 26 + 88 + 538 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3327789969 + 774898569 = 57687^2 + 27837^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4102688493 and 4102688502.

It is not an unprimeable number, because it can be changed into a prime (4102688539) 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, 228273 + ... + 245588.

Almost surely, 2^4102688538 is an apocalyptic number.

4102688538 is an abundant number, since it is smaller than the sum of its proper divisors (5729000238).

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

4102688538 is a wasteful number, since it uses less digits than its factorization.

4102688538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473919 (or 473916 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 4102688538 is about 64052.2328884794. The cubic root of 4102688538 is about 1600.8704297696.

The spelling of 4102688538 in words is "four billion, one hundred two million, six hundred eighty-eight thousand, five hundred thirty-eight".