18462906 has 108 divisors (see below), whose sum is σ = 51444666. Its totient is φ = 4767840.

The previous prime is 18462841. The next prime is 18462907. The reversal of 18462906 is 60926481.

It can be written as a sum of positive squares in only one way, i.e., 12006225 + 6456681 = 3465^2 + 2541^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18462907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 106636 + ... + 106808.

Almost surely, 2^18462906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18462906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25722333).

18462906 is an abundant number, since it is smaller than the sum of its proper divisors (32981760).

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

18462906 is a wasteful number, since it uses less digits than its factorization.

18462906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 196 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 18462906 is about 4296.8483799175. The cubic root of 18462906 is about 264.3017383307.

The spelling of 18462906 in words is "eighteen million, four hundred sixty-two thousand, nine hundred six".