782481228 has 48 divisors (see below), whose sum is σ = 1875150816. Its totient is φ = 253808640.

The previous prime is 782481211. The next prime is 782481247. The reversal of 782481228 is 822184287.

It is a super-2 number, since 2×782481228² = 1224553744344775968, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 782481228.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 211200 + ... + 214872.

It is an arithmetic number, because the mean of its divisors is an integer number (39065642).

Almost surely, 2^782481228 is an apocalyptic number.

It is an amenable number.

782481228 is an abundant number, since it is smaller than the sum of its proper divisors (1092669588).

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

782481228 is a wasteful number, since it uses less digits than its factorization.

782481228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4154 (or 4152 counting only the distinct ones).

The product of its digits is 114688, while the sum is 42.

The square root of 782481228 is about 27972.8659239628. The cubic root of 782481228 is about 921.4914482079.

The spelling of 782481228 in words is "seven hundred eighty-two million, four hundred eighty-one thousand, two hundred twenty-eight".