2319638 has 8 divisors (see below), whose sum is σ = 3553632. Its totient is φ = 1135096.

The previous prime is 2319631. The next prime is 2319649. The reversal of 2319638 is 8369132.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2319631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12245 + ... + 12432.

It is an arithmetic number, because the mean of its divisors is an integer number (444204).

2^2319638 is an apocalyptic number.

2319638 is a deficient number, since it is larger than the sum of its proper divisors (1233994).

2319638 is a wasteful number, since it uses less digits than its factorization.

2319638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24726.

The product of its digits is 7776, while the sum is 32.

The square root of 2319638 is about 1523.0357842152. The cubic root of 2319638 is about 132.3752332106.

The spelling of 2319638 in words is "two million, three hundred nineteen thousand, six hundred thirty-eight".