2318642 has 8 divisors (see below), whose sum is σ = 3572076. Its totient is φ = 1127952.

The previous prime is 2318623. The next prime is 2318663. The reversal of 2318642 is 2468132.

It can be written as a sum of positive squares in 2 ways, for example, as 1560001 + 758641 = 1249^2 + 871^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2318642² = 10752201448328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15593 + ... + 15740.

2^2318642 is an apocalyptic number.

2318642 is a deficient number, since it is larger than the sum of its proper divisors (1253434).

2318642 is a wasteful number, since it uses less digits than its factorization.

2318642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31372.

The product of its digits is 2304, while the sum is 26.

The square root of 2318642 is about 1522.7087705796. The cubic root of 2318642 is about 132.3562841896.

The spelling of 2318642 in words is "two million, three hundred eighteen thousand, six hundred forty-two".