1044232140 has 216 divisors, whose sum is σ = 3615993360. Its totient is φ = 224458752.

The previous prime is 1044232127. The next prime is 1044232141. The reversal of 1044232140 is 412324401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1044232141) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 849046 + ... + 850274.

It is an arithmetic number, because the mean of its divisors is an integer number (16740710).

Almost surely, 2^1044232140 is an apocalyptic number.

1044232140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044232140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1807996680).

1044232140 is an abundant number, since it is smaller than the sum of its proper divisors (2571761220).

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

1044232140 is a wasteful number, since it uses less digits than its factorization.

1044232140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289 (or 1263 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1044232140 is about 32314.5809194549. The cubic root of 1044232140 is about 1014.5318491088.

Adding to 1044232140 its reverse (412324401), we get a palindrome (1456556541).

The spelling of 1044232140 in words is "one billion, forty-four million, two hundred thirty-two thousand, one hundred forty".