1126772020 has 24 divisors (see below), whose sum is σ = 2581332768. Its totient is φ = 409735200.

The previous prime is 1126772011. The next prime is 1126772027. The reversal of 1126772020 is 202776211.

It is a self number, because there is not a number n which added to its sum of digits gives 1126772020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1126772027) 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 7 ways as a sum of consecutive naturals, for example, 2560626 + ... + 2561065.

It is an arithmetic number, because the mean of its divisors is an integer number (107555532).

Almost surely, 2^1126772020 is an apocalyptic number.

1126772020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1126772020 is an abundant number, since it is smaller than the sum of its proper divisors (1454560748).

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

1126772020 is a wasteful number, since it uses less digits than its factorization.

1126772020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5121711 (or 5121709 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 1126772020 is about 33567.4249831589. The cubic root of 1126772020 is about 1040.5876917549.

It can be divided in two parts, 1126 and 772020, that added together give a triangular number (773146 = T₁₂₄₃).

The spelling of 1126772020 in words is "one billion, one hundred twenty-six million, seven hundred seventy-two thousand, twenty".