142232444 has 12 divisors (see below), whose sum is σ = 254977968. Its totient is φ = 69381600.

The previous prime is 142232417. The next prime is 142232449. The reversal of 142232444 is 444232241.

It is a happy number.

It is a super-3 number, since 3×142232444³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142232449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433472 + ... + 433799.

It is an arithmetic number, because the mean of its divisors is an integer number (21248164).

Almost surely, 2^142232444 is an apocalyptic number.

It is an amenable number.

142232444 is a deficient number, since it is larger than the sum of its proper divisors (112745524).

142232444 is a wasteful number, since it uses less digits than its factorization.

142232444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867316 (or 867314 counting only the distinct ones).

The product of its digits is 6144, while the sum is 26.

The square root of 142232444 is about 11926.1244333606. The cubic root of 142232444 is about 521.9948571397.

Adding to 142232444 its reverse (444232241), we get a palindrome (586464685).

The spelling of 142232444 in words is "one hundred forty-two million, two hundred thirty-two thousand, four hundred forty-four".