18882340 has 24 divisors (see below), whose sum is σ = 39961152. Its totient is φ = 7494240.

The previous prime is 18882337. The next prime is 18882341. The reversal of 18882340 is 4328881.

It is a junction number, because it is equal to n+sod(n) for n = 18882296 and 18882305.

It is not an unprimeable number, because it can be changed into a prime (18882341) 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, 984 + ... + 6223.

It is an arithmetic number, because the mean of its divisors is an integer number (1665048).

Almost surely, 2^18882340 is an apocalyptic number.

18882340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18882340 is an abundant number, since it is smaller than the sum of its proper divisors (21078812).

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

18882340 is a wasteful number, since it uses less digits than its factorization.

18882340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7347 (or 7345 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 18882340 is about 4345.3814562130. The cubic root of 18882340 is about 266.2882096705.

It can be divided in two parts, 188 and 82340, that added together give a palindrome (82528).

The spelling of 18882340 in words is "eighteen million, eight hundred eighty-two thousand, three hundred forty".