1442140403 has 8 divisors (see below), whose sum is σ = 1573565376. Its totient is φ = 1310769000.

The previous prime is 1442140393. The next prime is 1442140409. The reversal of 1442140403 is 3040412441.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442140403 - 2¹⁶ = 1442074867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442140409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60800 + ... + 81122.

It is an arithmetic number, because the mean of its divisors is an integer number (196695672).

Almost surely, 2^1442140403 is an apocalyptic number.

1442140403 is a deficient number, since it is larger than the sum of its proper divisors (131424973).

1442140403 is a wasteful number, since it uses less digits than its factorization.

1442140403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26785.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1442140403 is about 37975.5237356906. The cubic root of 1442140403 is about 1129.8024566577.

Adding to 1442140403 its reverse (3040412441), we get a palindrome (4482552844).

The spelling of 1442140403 in words is "one billion, four hundred forty-two million, one hundred forty thousand, four hundred three".