103289418 has 40 divisors (see below), whose sum is σ = 232370820. Its totient is φ = 34292160.

The previous prime is 103289413. The next prime is 103289423. The reversal of 103289418 is 814982301.

It is an interprime number because it is at equal distance from previous prime (103289413) and next prime (103289423).

It can be written as a sum of positive squares in 2 ways, for example, as 99261369 + 4028049 = 9963^2 + 2007^2 .

It is not an unprimeable number, because it can be changed into a prime (103289413) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 44388 + ... + 46656.

Almost surely, 2^103289418 is an apocalyptic number.

103289418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103289418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116185410).

103289418 is an abundant number, since it is smaller than the sum of its proper divisors (129081402).

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

103289418 is a wasteful number, since it uses less digits than its factorization.

103289418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2564 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 103289418 is about 10163.1401643390. The cubic root of 103289418 is about 469.1934529865.

The spelling of 103289418 in words is "one hundred three million, two hundred eighty-nine thousand, four hundred eighteen".