18940482 has 72 divisors (see below), whose sum is σ = 47700432. Its totient is φ = 5385600.

The previous prime is 18940469. The next prime is 18940489. The reversal of 18940482 is 28404981.

It is not an unprimeable number, because it can be changed into a prime (18940489) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 57057 + ... + 57387.

It is an arithmetic number, because the mean of its divisors is an integer number (662506).

Almost surely, 2^18940482 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18940482, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23850216).

18940482 is an abundant number, since it is smaller than the sum of its proper divisors (28759950).

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

18940482 is a wasteful number, since it uses less digits than its factorization.

18940482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 18940482 is about 4352.0664057434. The cubic root of 18940482 is about 266.5612454822.

The spelling of 18940482 in words is "eighteen million, nine hundred forty thousand, four hundred eighty-two".