142313444 has 96 divisors (see below), whose sum is σ = 319872000. Its totient is φ = 55036800.

The previous prime is 142313441. The next prime is 142313449. The reversal of 142313444 is 444313241.

It is a super-2 number, since 2×142313444² = 40506232686282272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (142313441) 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, 1408994 + ... + 1409094.

It is an arithmetic number, because the mean of its divisors is an integer number (3332000).

Almost surely, 2^142313444 is an apocalyptic number.

142313444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142313444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159936000).

142313444 is an abundant number, since it is smaller than the sum of its proper divisors (177558556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142313444 is a wasteful number, since it uses less digits than its factorization.

142313444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218 (or 202 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

The square root of 142313444 is about 11929.5198562222. The cubic root of 142313444 is about 522.0939286747.

Adding to 142313444 its reverse (444313241), we get a palindrome (586626685).

The spelling of 142313444 in words is "one hundred forty-two million, three hundred thirteen thousand, four hundred forty-four".