3642438 has 16 divisors (see below), whose sum is σ = 7520256. Its totient is φ = 1174920.

The previous prime is 3642427. The next prime is 3642449. The reversal of 3642438 is 8342463.

3642438 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3642427) and next prime (3642449).

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 9606 + ... + 9977.

It is an arithmetic number, because the mean of its divisors is an integer number (470016).

Almost surely, 2^3642438 is an apocalyptic number.

3642438 is an abundant number, since it is smaller than the sum of its proper divisors (3877818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3642438 is a wasteful number, since it uses less digits than its factorization.

3642438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19619.

The product of its digits is 13824, while the sum is 30.

The square root of 3642438 is about 1908.5172254921. The cubic root of 3642438 is about 153.8617694790.

The spelling of 3642438 in words is "three million, six hundred forty-two thousand, four hundred thirty-eight".