4078780 has 24 divisors (see below), whose sum is σ = 8648640. Its totient is φ = 1615680.

The previous prime is 4078777. The next prime is 4078783. The reversal of 4078780 is 878704.

It is an interprime number because it is at equal distance from previous prime (4078777) and next prime (4078783).

It is a hoax number, since the sum of its digits (34) 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 (4078783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1245 + ... + 3115.

It is an arithmetic number, because the mean of its divisors is an integer number (360360).

Almost surely, 2^4078780 is an apocalyptic number.

It is an amenable number.

4078780 is an abundant number, since it is smaller than the sum of its proper divisors (4569860).

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

4078780 is a wasteful number, since it uses less digits than its factorization.

4078780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1989 (or 1987 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 34.

The square root of 4078780 is about 2019.5989700928. The cubic root of 4078780 is about 159.7754663013.

The spelling of 4078780 in words is "four million, seventy-eight thousand, seven hundred eighty".