142341444 has 72 divisors (see below), whose sum is σ = 413311808. Its totient is φ = 40461120.

The previous prime is 142341443. The next prime is 142341461. The reversal of 142341444 is 444143241.

It is a super-2 number, since 2×142341444² = 40522173360010272, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (142341443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51834 + ... + 54510.

Almost surely, 2^142341444 is an apocalyptic number.

142341444 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 142341444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206655904).

142341444 is an abundant number, since it is smaller than the sum of its proper divisors (270970364).

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

142341444 is a wasteful number, since it uses less digits than its factorization.

142341444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 2900 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 142341444 is about 11930.6933578900. The cubic root of 142341444 is about 522.1281668815.

Adding to 142341444 its reverse (444143241), we get a palindrome (586484685).

The spelling of 142341444 in words is "one hundred forty-two million, three hundred forty-one thousand, four hundred forty-four".