7138685244 has 48 divisors (see below), whose sum is σ = 17548634880. Its totient is φ = 2252390400.

The previous prime is 7138685231. The next prime is 7138685261. The reversal of 7138685244 is 4425868317.

It is a junction number, because it is equal to n+sod(n) for n = 7138685193 and 7138685202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 266044 + ... + 291644.

It is an arithmetic number, because the mean of its divisors is an integer number (365596560).

Almost surely, 2^7138685244 is an apocalyptic number.

It is an amenable number.

7138685244 is an abundant number, since it is smaller than the sum of its proper divisors (10409949636).

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

7138685244 is a wasteful number, since it uses less digits than its factorization.

7138685244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26850 (or 26848 counting only the distinct ones).

The product of its digits is 1290240, while the sum is 48.

The square root of 7138685244 is about 84490.7405814389. The cubic root of 7138685244 is about 1925.4817701464.

The spelling of 7138685244 in words is "seven billion, one hundred thirty-eight million, six hundred eighty-five thousand, two hundred forty-four".