1138790170 has 64 divisors (see below), whose sum is σ = 2407781376. Its totient is φ = 379653120.

The previous prime is 1138790143. The next prime is 1138790179. The reversal of 1138790170 is 710978311.

It is not an unprimeable number, because it can be changed into a prime (1138790179) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1328382 + ... + 1329238.

It is an arithmetic number, because the mean of its divisors is an integer number (37621584).

Almost surely, 2^1138790170 is an apocalyptic number.

1138790170 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138790170 is an abundant number, since it is smaller than the sum of its proper divisors (1268991206).

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

1138790170 is a wasteful number, since it uses less digits than its factorization.

1138790170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1375.

The product of its (nonzero) digits is 10584, while the sum is 37.

The square root of 1138790170 is about 33745.9652403069. The cubic root of 1138790170 is about 1044.2742517020.

The spelling of 1138790170 in words is "one billion, one hundred thirty-eight million, seven hundred ninety thousand, one hundred seventy".