2321018 has 16 divisors (see below), whose sum is σ = 4004160. Its totient is φ = 988416.

The previous prime is 2321017. The next prime is 2321023. The reversal of 2321018 is 8101232.

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 2320987 and 2321005.

It is not an unprimeable number, because it can be changed into a prime (2321017) 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, 2273 + ... + 3131.

It is an arithmetic number, because the mean of its divisors is an integer number (250260).

2^2321018 is an apocalyptic number.

2321018 is a deficient number, since it is larger than the sum of its proper divisors (1683142).

2321018 is a wasteful number, since it uses less digits than its factorization.

2321018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2321018 is about 1523.4887593940. The cubic root of 2321018 is about 132.4014789161.

The spelling of 2321018 in words is "two million, three hundred twenty-one thousand, eighteen".