4638542 has 8 divisors (see below), whose sum is σ = 7145976. Its totient is φ = 2256552.

The previous prime is 4638541. The next prime is 4638547. The reversal of 4638542 is 2458364.

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

It is a d-powerful number, because it can be written as 4⁹ + 6⁶ + 3⁶ + 8³ + 5⁵ + 4¹¹ + 2¹⁷ .

It is a junction number, because it is equal to n+sod(n) for n = 4638499 and 4638508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4638541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31268 + ... + 31415.

It is an arithmetic number, because the mean of its divisors is an integer number (893247).

Almost surely, 2^4638542 is an apocalyptic number.

4638542 is a deficient number, since it is larger than the sum of its proper divisors (2507434).

4638542 is a wasteful number, since it uses less digits than its factorization.

4638542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62722.

The product of its digits is 23040, while the sum is 32.

The square root of 4638542 is about 2153.7274665101. The cubic root of 4638542 is about 166.7735465566.

The spelling of 4638542 in words is "four million, six hundred thirty-eight thousand, five hundred forty-two".