1020277782 has 56 divisors (see below), whose sum is σ = 2300284080. Its totient is φ = 339247440.

The previous prime is 1020277781. The next prime is 1020277793. The reversal of 1020277782 is 2877720201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020277781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 919444 + ... + 920552.

Almost surely, 2^1020277782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020277782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150142040).

1020277782 is an abundant number, since it is smaller than the sum of its proper divisors (1280006298).

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

1020277782 is an equidigital number, since it uses as much as digits as its factorization.

1020277782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1760 (or 1745 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 36.

The square root of 1020277782 is about 31941.7873951975. The cubic root of 1020277782 is about 1006.7140808966.

Adding to 1020277782 its reverse (2877720201), we get a palindrome (3897997983).

The spelling of 1020277782 in words is "one billion, twenty million, two hundred seventy-seven thousand, seven hundred eighty-two".