1442423133 has 80 divisors (see below), whose sum is σ = 2368153920. Its totient is φ = 871720704.

The previous prime is 1442423131. The next prime is 1442423153. The reversal of 1442423133 is 3313242441.

1442423133 is a `hidden beast` number, since 1 + 4 + 424 + 231 + 3 + 3 = 666.

It is not a de Polignac number, because 1442423133 - 2¹ = 1442423131 is a prime.

It is a super-3 number, since 3×1442423133³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1442423097 and 1442423106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1442423131) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4156666 + ... + 4157012.

It is an arithmetic number, because the mean of its divisors is an integer number (29601924).

Almost surely, 2^1442423133 is an apocalyptic number.

It is an amenable number.

1442423133 is a deficient number, since it is larger than the sum of its proper divisors (925730787).

1442423133 is a wasteful number, since it uses less digits than its factorization.

1442423133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488 (or 479 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 1442423133 is about 37979.2460825646. The cubic root of 1442423133 is about 1129.8762839992.

Adding to 1442423133 its reverse (3313242441), we get a palindrome (4755665574).

The spelling of 1442423133 in words is "one billion, four hundred forty-two million, four hundred twenty-three thousand, one hundred thirty-three".