1044001220 has 12 divisors (see below), whose sum is σ = 2192402604. Its totient is φ = 417600480.

The previous prime is 1044001207. The next prime is 1044001223. The reversal of 1044001220 is 221004401.

1044001220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 493817284 + 550183936 = 22222^2 + 23456^2 .

It is a super-2 number, since 2×1044001220² = 2179877094722976800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1044001195 and 1044001204.

It is not an unprimeable number, because it can be changed into a prime (1044001223) 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, 26100011 + ... + 26100050.

It is an arithmetic number, because the mean of its divisors is an integer number (182700217).

Almost surely, 2^1044001220 is an apocalyptic number.

1044001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044001220 is an abundant number, since it is smaller than the sum of its proper divisors (1148401384).

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

1044001220 is a wasteful number, since it uses less digits than its factorization.

1044001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52200070 (or 52200068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1044001220 is about 32311.0077218276. The cubic root of 1044001220 is about 1014.4570595555.

Adding to 1044001220 its reverse (221004401), we get a palindrome (1265005621).

The spelling of 1044001220 in words is "one billion, forty-four million, one thousand, two hundred twenty".