283748780 has 48 divisors (see below), whose sum is σ = 689230080. Its totient is φ = 96109248.

The previous prime is 283748771. The next prime is 283748807. The reversal of 283748780 is 87847382.

It is a happy number.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 590 + ... + 23829.

It is an arithmetic number, because the mean of its divisors is an integer number (14358960).

Almost surely, 2^283748780 is an apocalyptic number.

283748780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283748780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (344615040).

283748780 is an abundant number, since it is smaller than the sum of its proper divisors (405481300).

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

283748780 is a wasteful number, since it uses less digits than its factorization.

283748780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24518 (or 24516 counting only the distinct ones).

The product of its (nonzero) digits is 602112, while the sum is 47.

The square root of 283748780 is about 16844.8443151013. The cubic root of 283748780 is about 657.1199729631.

The spelling of 283748780 in words is "two hundred eighty-three million, seven hundred forty-eight thousand, seven hundred eighty".