1140443972 has 6 divisors (see below), whose sum is σ = 1995776958. Its totient is φ = 570221984.

The previous prime is 1140443971. The next prime is 1140443977. The reversal of 1140443972 is 2793440411.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 882327616 + 258116356 = 29704^2 + 16066^2 .

It is a super-2 number, since 2×1140443972² = 2601224906542273568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1140443971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142555493 + ... + 142555500.

It is an arithmetic number, because the mean of its divisors is an integer number (332629493).

Almost surely, 2^1140443972 is an apocalyptic number.

It is an amenable number.

1140443972 is a deficient number, since it is larger than the sum of its proper divisors (855332986).

1140443972 is a wasteful number, since it uses less digits than its factorization.

1140443972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285110997 (or 285110995 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1140443972 is about 33770.4600501681. The cubic root of 1140443972 is about 1044.7795211085.

The spelling of 1140443972 in words is "one billion, one hundred forty million, four hundred forty-three thousand, nine hundred seventy-two".