1442143625 has 32 divisors (see below), whose sum is σ = 1942405920. Its totient is φ = 1062681600.

The previous prime is 1442143607. The next prime is 1442143627. The reversal of 1442143625 is 5263412441.

It can be written as a sum of positive squares in 16 ways, for example, as 1132524409 + 309619216 = 33653^2 + 17596^2 .

It is not a de Polignac number, because 1442143625 - 2¹⁰ = 1442142601 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1442143591 and 1442143600.

It is not an unprimeable number, because it can be changed into a prime (1442143627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1314077 + ... + 1315173.

It is an arithmetic number, because the mean of its divisors is an integer number (60700185).

Almost surely, 2^1442143625 is an apocalyptic number.

It is an amenable number.

1442143625 is a deficient number, since it is larger than the sum of its proper divisors (500262295).

1442143625 is a wasteful number, since it uses less digits than its factorization.

1442143625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934 (or 1924 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 1442143625 is about 37975.5661577283. The cubic root of 1442143625 is about 1129.8032980507.

The spelling of 1442143625 in words is "one billion, four hundred forty-two million, one hundred forty-three thousand, six hundred twenty-five".