18943482 has 16 divisors (see below), whose sum is σ = 38911392. Its totient is φ = 6143760.

The previous prime is 18943481. The next prime is 18943499. The reversal of 18943482 is 28434981.

It is a self number, because there is not a number n which added to its sum of digits gives 18943482.

It is not an unprimeable number, because it can be changed into a prime (18943481) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42444 + ... + 42887.

It is an arithmetic number, because the mean of its divisors is an integer number (2431962).

Almost surely, 2^18943482 is an apocalyptic number.

18943482 is an abundant number, since it is smaller than the sum of its proper divisors (19967910).

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

18943482 is a wasteful number, since it uses less digits than its factorization.

18943482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85373.

The product of its digits is 55296, while the sum is 39.

The square root of 18943482 is about 4352.4110559551. The cubic root of 18943482 is about 266.5753183644.

The spelling of 18943482 in words is "eighteen million, nine hundred forty-three thousand, four hundred eighty-two".