4615638 has 8 divisors (see below), whose sum is σ = 9231288. Its totient is φ = 1538544.

The previous prime is 4615627. The next prime is 4615661. The reversal of 4615638 is 8365164.

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

4615638 is an admirable number.

It is a super-2 number, since 2×4615638² = 42608228294088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4615599 and 4615608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384631 + ... + 384642.

It is an arithmetic number, because the mean of its divisors is an integer number (1153911).

Almost surely, 2^4615638 is an apocalyptic number.

4615638 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4615638 is a wasteful number, since it uses less digits than its factorization.

4615638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769278.

The product of its digits is 17280, while the sum is 33.

The square root of 4615638 is about 2148.4035933688. The cubic root of 4615638 is about 166.4985976850.

It can be divided in two parts, 4615 and 638, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 4615638 in words is "four million, six hundred fifteen thousand, six hundred thirty-eight".