1440996772 has 18 divisors (see below), whose sum is σ = 2678810162. Its totient is φ = 678115584.

The previous prime is 1440996769. The next prime is 1440996827. The reversal of 1440996772 is 2776990441.

It can be written as a sum of positive squares in 3 ways, for example, as 342472036 + 1098524736 = 18506^2 + 33144^2 .

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, 622113 + ... + 624424.

Almost surely, 2^1440996772 is an apocalyptic number.

It is an amenable number.

1440996772 is a deficient number, since it is larger than the sum of its proper divisors (1237813390).

1440996772 is a wasteful number, since it uses less digits than its factorization.

1440996772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246575 (or 1246556 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 49.

The square root of 1440996772 is about 37960.4632743069. The cubic root of 1440996772 is about 1129.5037296626.

The spelling of 1440996772 in words is "one billion, four hundred forty million, nine hundred ninety-six thousand, seven hundred seventy-two".