1138518 has 24 divisors (see below), whose sum is σ = 2597400. Its totient is φ = 359424.

The previous prime is 1138483. The next prime is 1138519. The reversal of 1138518 is 8158311.

It is a junction number, because it is equal to n+sod(n) for n = 1138491 and 1138500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138519) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323 + ... + 2006.

It is an arithmetic number, because the mean of its divisors is an integer number (108225).

2^1138518 is an apocalyptic number.

1138518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1138518 is an abundant number, since it is smaller than the sum of its proper divisors (1458882).

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

1138518 is a wasteful number, since it uses less digits than its factorization.

1138518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356 (or 3353 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

The square root of 1138518 is about 1067.0135894167. The cubic root of 1138518 is about 104.4191051485.

The spelling of 1138518 in words is "one million, one hundred thirty-eight thousand, five hundred eighteen".