18562012 has 96 divisors (see below), whose sum is σ = 42900480. Its totient is φ = 6842880.

The previous prime is 18562009. The next prime is 18562043. The reversal of 18562012 is 21026581.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 452712 + ... + 452752.

It is an arithmetic number, because the mean of its divisors is an integer number (446880).

Almost surely, 2^18562012 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18562012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21450240).

18562012 is an abundant number, since it is smaller than the sum of its proper divisors (24338468).

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

18562012 is a wasteful number, since it uses less digits than its factorization.

18562012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 18562012 is about 4308.3653512672. The cubic root of 18562012 is about 264.7738048463.

Adding to 18562012 its reverse (21026581), we get a palindrome (39588593).

The spelling of 18562012 in words is "eighteen million, five hundred sixty-two thousand, twelve".