4638472 has 8 divisors (see below), whose sum is σ = 8697150. Its totient is φ = 2319232.

The previous prime is 4638461. The next prime is 4638509. The reversal of 4638472 is 2748364.

It can be written as a sum of positive squares in only one way, i.e., 2604996 + 2033476 = 1614^2 + 1426^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a d-powerful number, because it can be written as 4⁹ + 6⁴ + 3⁴ + 8⁵ + 4¹¹ + 7⁵ + 2¹⁷ .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289897 + ... + 289912.

Almost surely, 2^4638472 is an apocalyptic number.

It is an amenable number.

4638472 is a deficient number, since it is larger than the sum of its proper divisors (4058678).

4638472 is a wasteful number, since it uses less digits than its factorization.

4638472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579815 (or 579811 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 4638472 is about 2153.7112155533. The cubic root of 4638472 is about 166.7727076287.

The spelling of 4638472 in words is "four million, six hundred thirty-eight thousand, four hundred seventy-two".