283278620 has 24 divisors (see below), whose sum is σ = 614076288. Its totient is φ = 109656000.

The previous prime is 283278601. The next prime is 283278637. The reversal of 283278620 is 26872382.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227831 + ... + 229070.

It is an arithmetic number, because the mean of its divisors is an integer number (25586512).

Almost surely, 2^283278620 is an apocalyptic number.

283278620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

283278620 is an abundant number, since it is smaller than the sum of its proper divisors (330797668).

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

283278620 is a wasteful number, since it uses less digits than its factorization.

283278620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456941 (or 456939 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 283278620 is about 16830.8829239586. The cubic root of 283278620 is about 656.7568321081.

The spelling of 283278620 in words is "two hundred eighty-three million, two hundred seventy-eight thousand, six hundred twenty".