1442140323 has 16 divisors (see below), whose sum is σ = 2071524000. Its totient is φ = 887145984.

The previous prime is 1442140313. The next prime is 1442140351. The reversal of 1442140323 is 3230412441.

It is not a de Polignac number, because 1442140323 - 2⁵ = 1442140291 is a prime.

It is a super-2 number, since 2×1442140323² = 4159537422445088658, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1442140293 and 1442140302.

It is not an unprimeable number, because it can be changed into a prime (1442140303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143053 + ... + 152801.

It is an arithmetic number, because the mean of its divisors is an integer number (129470250).

Almost surely, 2^1442140323 is an apocalyptic number.

1442140323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1442140323 is a deficient number, since it is larger than the sum of its proper divisors (629383677).

1442140323 is a wasteful number, since it uses less digits than its factorization.

1442140323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13558.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 1442140323 is about 37975.5226823806. The cubic root of 1442140323 is about 1129.8024357664.

Adding to 1442140323 its reverse (3230412441), we get a palindrome (4672552764).

The spelling of 1442140323 in words is "one billion, four hundred forty-two million, one hundred forty thousand, three hundred twenty-three".