1138570208 has 24 divisors (see below), whose sum is σ = 2251626048. Its totient is φ = 566728704.

The previous prime is 1138570187. The next prime is 1138570217. The reversal of 1138570208 is 8020758311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72641 + ... + 86912.

It is an arithmetic number, because the mean of its divisors is an integer number (93817752).

Almost surely, 2^1138570208 is an apocalyptic number.

It is an amenable number.

1138570208 is a deficient number, since it is larger than the sum of its proper divisors (1113055840).

1138570208 is a wasteful number, since it uses less digits than its factorization.

1138570208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159786 (or 159778 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 1138570208 is about 33742.7059970003. The cubic root of 1138570208 is about 1044.2070120852.

The spelling of 1138570208 in words is "one billion, one hundred thirty-eight million, five hundred seventy thousand, two hundred eight".