1044220500 has 72 divisors (see below), whose sum is σ = 3294181800. Its totient is φ = 278457600.

The previous prime is 1044220477. The next prime is 1044220511. The reversal of 1044220500 is 50224401.

1044220500 is a `hidden beast` number, since 104 + 42 + 20 + 500 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 15350724 + 1028869776 = 3918^2 + 32076^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111525 + ... + 120524.

It is an arithmetic number, because the mean of its divisors is an integer number (45752525).

Almost surely, 2^1044220500 is an apocalyptic number.

1044220500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044220500 is an abundant number, since it is smaller than the sum of its proper divisors (2249961300).

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

1044220500 is a wasteful number, since it uses less digits than its factorization.

1044220500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232074 (or 232059 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 1044220500 is about 32314.4008144976. The cubic root of 1044220500 is about 1014.5280794507.

Adding to 1044220500 its reverse (50224401), we get a palindrome (1094444901).

The spelling of 1044220500 in words is "one billion, forty-four million, two hundred twenty thousand, five hundred".