4638642 has 16 divisors (see below), whose sum is σ = 9314112. Its totient is φ = 1540080.

The previous prime is 4638631. The next prime is 4638659. The reversal of 4638642 is 2468364.

4638642 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 267 + ... + 3057.

It is an arithmetic number, because the mean of its divisors is an integer number (582132).

Almost surely, 2^4638642 is an apocalyptic number.

4638642 is an abundant number, since it is smaller than the sum of its proper divisors (4675470).

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

4638642 is a wasteful number, since it uses less digits than its factorization.

4638642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3073.

The product of its digits is 27648, while the sum is 33.

The square root of 4638642 is about 2153.7506819500. The cubic root of 4638642 is about 166.7747450104.

The spelling of 4638642 in words is "four million, six hundred thirty-eight thousand, six hundred forty-two".