4778236 has 12 divisors (see below), whose sum is σ = 8468320. Its totient is φ = 2358720.

The previous prime is 4778231. The next prime is 4778237. The reversal of 4778236 is 6328774.

It is a junction number, because it is equal to n+sod(n) for n = 4778195 and 4778204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778231) 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, 7245 + ... + 7876.

Almost surely, 2^4778236 is an apocalyptic number.

It is an amenable number.

4778236 is a deficient number, since it is larger than the sum of its proper divisors (3690084).

4778236 is a wasteful number, since it uses less digits than its factorization.

4778236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15204 (or 15202 counting only the distinct ones).

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

The square root of 4778236 is about 2185.9176562716. The cubic root of 4778236 is about 168.4311958050.

The spelling of 4778236 in words is "four million, seven hundred seventy-eight thousand, two hundred thirty-six".