1044142220 has 48 divisors (see below), whose sum is σ = 2456703648. Its totient is φ = 369423360.

The previous prime is 1044142219. The next prime is 1044142237. The reversal of 1044142220 is 222414401.

1044142220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1044142192 and 1044142201.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55997 + ... + 72276.

It is an arithmetic number, because the mean of its divisors is an integer number (51181326).

Almost surely, 2^1044142220 is an apocalyptic number.

1044142220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044142220 is an abundant number, since it is smaller than the sum of its proper divisors (1412561428).

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

1044142220 is a wasteful number, since it uses less digits than its factorization.

1044142220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128330 (or 128328 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1044142220 is about 32313.1895671102. The cubic root of 1044142220 is about 1014.5027274480.

Adding to 1044142220 its reverse (222414401), we get a palindrome (1266556621).

The spelling of 1044142220 in words is "one billion, forty-four million, one hundred forty-two thousand, two hundred twenty".