1443697972 has 6 divisors (see below), whose sum is σ = 2526471458. Its totient is φ = 721848984.

The previous prime is 1443697967. The next prime is 1443697973. The reversal of 1443697972 is 2797963441.

It can be written as a sum of positive squares in only one way, i.e., 827367696 + 616330276 = 28764^2 + 24826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443697973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180462243 + ... + 180462250.

Almost surely, 2^1443697972 is an apocalyptic number.

It is an amenable number.

1443697972 is a deficient number, since it is larger than the sum of its proper divisors (1082773486).

1443697972 is a wasteful number, since it uses less digits than its factorization.

1443697972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360924497 (or 360924495 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 52.

The square root of 1443697972 is about 37996.0257395428. The cubic root of 1443697972 is about 1130.2090541769.

The spelling of 1443697972 in words is "one billion, four hundred forty-three million, six hundred ninety-seven thousand, nine hundred seventy-two".