4272780 has 96 divisors (see below), whose sum is σ = 13063680. Its totient is φ = 1039360.

The previous prime is 4272769. The next prime is 4272799. The reversal of 4272780 is 872724.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60145 + ... + 60215.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

Almost surely, 2^4272780 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 4272780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6531840).

4272780 is an abundant number, since it is smaller than the sum of its proper divisors (8790900).

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

4272780 is a wasteful number, since it uses less digits than its factorization.

4272780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 4272780 is about 2067.0703906737. The cubic root of 4272780 is about 162.2694798482.

The spelling of 4272780 in words is "four million, two hundred seventy-two thousand, seven hundred eighty".