2403638 has 8 divisors (see below), whose sum is σ = 3762288. Its totient is φ = 1149544.

The previous prime is 2403629. The next prime is 2403659. The reversal of 2403638 is 8363042.

2403638 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26081 + ... + 26172.

It is an arithmetic number, because the mean of its divisors is an integer number (470286).

2^2403638 is an apocalyptic number.

2403638 is a deficient number, since it is larger than the sum of its proper divisors (1358650).

2403638 is a wasteful number, since it uses less digits than its factorization.

2403638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52278.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 2403638 is about 1550.3670533135. The cubic root of 2403638 is about 133.9542057819.

The spelling of 2403638 in words is "two million, four hundred three thousand, six hundred thirty-eight".