2398438 has 8 divisors (see below), whose sum is σ = 4111632. Its totient is φ = 1027896.

The previous prime is 2398433. The next prime is 2398441. The reversal of 2398438 is 8348932.

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

It is a junction number, because it is equal to n+sod(n) for n = 2398397 and 2398406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2398433) 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, 85645 + ... + 85672.

It is an arithmetic number, because the mean of its divisors is an integer number (513954).

2^2398438 is an apocalyptic number.

2398438 is a deficient number, since it is larger than the sum of its proper divisors (1713194).

2398438 is a wasteful number, since it uses less digits than its factorization.

2398438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171326.

The product of its digits is 41472, while the sum is 37.

The square root of 2398438 is about 1548.6891230973. The cubic root of 2398438 is about 133.8575377609.

The spelling of 2398438 in words is "two million, three hundred ninety-eight thousand, four hundred thirty-eight".