1044072140 has 24 divisors (see below), whose sum is σ = 2193745680. Its totient is φ = 417401408.

The previous prime is 1044072131. The next prime is 1044072149. The reversal of 1044072140 is 412704401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1044072131) and next prime (1044072149).

It is not an unprimeable number, because it can be changed into a prime (1044072149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26231 + ... + 52689.

It is an arithmetic number, because the mean of its divisors is an integer number (91406070).

Almost surely, 2^1044072140 is an apocalyptic number.

1044072140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1044072140 is an abundant number, since it is smaller than the sum of its proper divisors (1149673540).

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

1044072140 is a wasteful number, since it uses less digits than its factorization.

1044072140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28441 (or 28439 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 1044072140 is about 32312.1051619977. The cubic root of 1044072140 is about 1014.4800300477.

Adding to 1044072140 its reverse (412704401), we get a palindrome (1456776541).

The spelling of 1044072140 in words is "one billion, forty-four million, seventy-two thousand, one hundred forty".