4778632 has 32 divisors (see below), whose sum is σ = 9729720. Its totient is φ = 2191360.

The previous prime is 4778611. The next prime is 4778659. The reversal of 4778632 is 2368774.

It can be written as a sum of positive squares in 4 ways, for example, as 4435236 + 343396 = 2106^2 + 586^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4778591 and 4778600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5148 + ... + 6004.

Almost surely, 2^4778632 is an apocalyptic number.

It is an amenable number.

4778632 is an abundant number, since it is smaller than the sum of its proper divisors (4951088).

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

4778632 is a wasteful number, since it uses less digits than its factorization.

4778632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 917 counting only the distinct ones).

The product of its digits is 56448, while the sum is 37.

The square root of 4778632 is about 2186.0082342022. The cubic root of 4778632 is about 168.4358486316.

The spelling of 4778632 in words is "four million, seven hundred seventy-eight thousand, six hundred thirty-two".