1180638 has 24 divisors (see below), whose sum is σ = 2586168.
Its totient is φ = 389232.
The previous prime is 1180637. The next prime is 1180643. The reversal of 1180638 is 8360811.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1180631) 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, 1620 + ... + 2232.
It is an arithmetic number, because the mean of its divisors is an integer number (107757).
21180638 is an apocalyptic number.
1180638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.
1180638 is an abundant number, since it is smaller than the sum of its proper divisors (1405530).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1180638 is a wasteful number, since it uses less digits than its factorization.
1180638 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 728 (or 725 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 27.
The square root of 1180638 is about 1086.5716727395.
The cubic root of 1180638 is about 105.6912219677.
The spelling of 1180638 in words is "one million, one hundred eighty thousand, six hundred thirty-eight".