4026780 has 48 divisors (see below), whose sum is σ = 12529440. Its totient is φ = 1073664.

The previous prime is 4026751. The next prime is 4026791. The reversal of 4026780 is 876204.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3189 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (261030).

Almost surely, 2^4026780 is an apocalyptic number.

It is an amenable number.

4026780 is an abundant number, since it is smaller than the sum of its proper divisors (8502660).

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

4026780 is a wasteful number, since it uses less digits than its factorization.

4026780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7475 (or 7467 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 4026780 is about 2006.6838315988. The cubic root of 4026780 is about 159.0935725466.

The spelling of 4026780 in words is "four million, twenty-six thousand, seven hundred eighty".