1012204544 has 66 divisors (see below), whose sum is σ = 2191415850. Its totient is φ = 467091456.

The previous prime is 1012204517. The next prime is 1012204553. The reversal of 1012204544 is 4454022101.

It can be written as a sum of positive squares in 3 ways, for example, as 6553600 + 1005650944 = 2560^2 + 31712^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 170132 + ... + 175980.

Almost surely, 2^1012204544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012204544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1095707925).

1012204544 is an abundant number, since it is smaller than the sum of its proper divisors (1179211306).

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

1012204544 is an equidigital number, since it uses as much as digits as its factorization.

1012204544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895 (or 5864 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 1012204544 is about 31815.1621715182. The cubic root of 1012204544 is about 1004.0517425437.

Adding to 1012204544 its reverse (4454022101), we get a palindrome (5466226645).

The spelling of 1012204544 in words is "one billion, twelve million, two hundred four thousand, five hundred forty-four".