4512780 has 96 divisors (see below), whose sum is σ = 14374080. Its totient is φ = 1175040.

The previous prime is 4512751. The next prime is 4512797. The reversal of 4512780 is 872154.

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

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, 32872 + ... + 33008.

It is an arithmetic number, because the mean of its divisors is an integer number (149730).

Almost surely, 2^4512780 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 4512780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7187040).

4512780 is an abundant number, since it is smaller than the sum of its proper divisors (9861300).

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

4512780 is a wasteful number, since it uses less digits than its factorization.

4512780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 4512780 is about 2124.3304827639. The cubic root of 4512780 is about 165.2525059452.

The spelling of 4512780 in words is "four million, five hundred twelve thousand, seven hundred eighty".