283247790 has 64 divisors (see below), whose sum is σ = 790110720. Its totient is φ = 63642240.

The previous prime is 283247779. The next prime is 283247791. The reversal of 283247790 is 97742382.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (283247791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 960 + ... + 23820.

It is an arithmetic number, because the mean of its divisors is an integer number (12345480).

Almost surely, 2^283247790 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 283247790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395055360).

283247790 is an abundant number, since it is smaller than the sum of its proper divisors (506862930).

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

283247790 is a wasteful number, since it uses less digits than its factorization.

283247790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22937.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 283247790 is about 16829.9670231406. The cubic root of 283247790 is about 656.7330056863.

The spelling of 283247790 in words is "two hundred eighty-three million, two hundred forty-seven thousand, seven hundred ninety".