1045777220 has 12 divisors (see below), whose sum is σ = 2196132204. Its totient is φ = 418310880.

The previous prime is 1045777217. The next prime is 1045777223. The reversal of 1045777220 is 227775401.

1045777220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1045777217) and next prime (1045777223).

It can be written as a sum of positive squares in 2 ways, for example, as 371024644 + 674752576 = 19262^2 + 25976^2 .

It is not an unprimeable number, because it can be changed into a prime (1045777223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26144411 + ... + 26144450.

It is an arithmetic number, because the mean of its divisors is an integer number (183011017).

Almost surely, 2^1045777220 is an apocalyptic number.

1045777220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1045777220 is an abundant number, since it is smaller than the sum of its proper divisors (1150354984).

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

1045777220 is a wasteful number, since it uses less digits than its factorization.

1045777220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52288870 (or 52288868 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 1045777220 is about 32338.4789376371. The cubic root of 1045777220 is about 1015.0319806792.

The spelling of 1045777220 in words is "one billion, forty-five million, seven hundred seventy-seven thousand, two hundred twenty".