18353106 has 12 divisors (see below), whose sum is σ = 39765102. Its totient is φ = 6117696.

The previous prime is 18353087. The next prime is 18353119. The reversal of 18353106 is 60135381.

It can be written as a sum of positive squares in only one way, i.e., 14130081 + 4223025 = 3759^2 + 2055^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 18353106.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 509791 + ... + 509826.

Almost surely, 2^18353106 is an apocalyptic number.

18353106 is an abundant number, since it is smaller than the sum of its proper divisors (21411996).

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

18353106 is a wasteful number, since it uses less digits than its factorization.

18353106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019625 (or 1019622 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 18353106 is about 4284.0525206865. The cubic root of 18353106 is about 263.7767568671.

Adding to 18353106 its reverse (60135381), we get a palindrome (78488487).

The spelling of 18353106 in words is "eighteen million, three hundred fifty-three thousand, one hundred six".