4978432 has 18 divisors (see below), whose sum is σ = 9937928. Its totient is φ = 2489088.

The previous prime is 4978429. The next prime is 4978447. The reversal of 4978432 is 2348794.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4978391 and 4978400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9468 + ... + 9979.

Almost surely, 2^4978432 is an apocalyptic number.

It is an amenable number.

4978432 is a deficient number, since it is larger than the sum of its proper divisors (4959496).

4978432 is an equidigital number, since it uses as much as digits as its factorization.

4978432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19463 (or 19449 counting only the distinct ones).

The product of its digits is 48384, while the sum is 37.

The square root of 4978432 is about 2231.2400139833. The cubic root of 4978432 is about 170.7513685458.

The spelling of 4978432 in words is "four million, nine hundred seventy-eight thousand, four hundred thirty-two".