4077780 has 144 divisors (see below), whose sum is σ = 14172480. Its totient is φ = 870912.

The previous prime is 4077779. The next prime is 4077781. The reversal of 4077780 is 877704.

It is an interprime number because it is at equal distance from previous prime (4077779) and next prime (4077781).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4077781) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55824 + ... + 55896.

It is an arithmetic number, because the mean of its divisors is an integer number (98420).

Almost surely, 2^4077780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4077780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7086240).

4077780 is an abundant number, since it is smaller than the sum of its proper divisors (10094700).

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

4077780 is a wasteful number, since it uses less digits than its factorization.

4077780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 33.

The square root of 4077780 is about 2019.3513810132. The cubic root of 4077780 is about 159.7624077784.

The spelling of 4077780 in words is "four million, seventy-seven thousand, seven hundred eighty".