4638375 has 96 divisors (see below), whose sum is σ = 10383360. Its totient is φ = 1944000.

The previous prime is 4638353. The next prime is 4638377. The reversal of 4638375 is 5738364.

It is a happy number.

It is not a de Polignac number, because 4638375 - 2⁷ = 4638247 is a prime.

4638375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638377) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 149610 + ... + 149640.

It is an arithmetic number, because the mean of its divisors is an integer number (108160).

Almost surely, 2^4638375 is an apocalyptic number.

4638375 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4638375 is an abundant number, since it is smaller than the sum of its proper divisors (5744985).

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

4638375 is a wasteful number, since it uses less digits than its factorization.

4638375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78 (or 65 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 4638375 is about 2153.6886961676. The cubic root of 4638375 is about 166.7715451004.

The spelling of 4638375 in words is "four million, six hundred thirty-eight thousand, three hundred seventy-five".