4778780 has 12 divisors (see below), whose sum is σ = 10035480. Its totient is φ = 1911504.

The previous prime is 4778777. The next prime is 4778783. The reversal of 4778780 is 878774.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4778777) and next prime (4778783).

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4778783) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 119450 + ... + 119489.

It is an arithmetic number, because the mean of its divisors is an integer number (836290).

Almost surely, 2^4778780 is an apocalyptic number.

It is an amenable number.

4778780 is an abundant number, since it is smaller than the sum of its proper divisors (5256700).

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

4778780 is a wasteful number, since it uses less digits than its factorization.

4778780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238948 (or 238946 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 41.

The square root of 4778780 is about 2186.0420855967. The cubic root of 4778780 is about 168.4375875008.

The spelling of 4778780 in words is "four million, seven hundred seventy-eight thousand, seven hundred eighty".