144632442 has 32 divisors (see below), whose sum is σ = 301024512. Its totient is φ = 46289984.

The previous prime is 144632417. The next prime is 144632459. The reversal of 144632442 is 244236441.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10108 + ... + 19784.

It is an arithmetic number, because the mean of its divisors is an integer number (9407016).

Almost surely, 2^144632442 is an apocalyptic number.

144632442 is an abundant number, since it is smaller than the sum of its proper divisors (156392070).

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

144632442 is a wasteful number, since it uses less digits than its factorization.

144632442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9782.

The product of its digits is 18432, while the sum is 30.

The square root of 144632442 is about 12026.3228794175. The cubic root of 144632442 is about 524.9145039916.

Adding to 144632442 its reverse (244236441), we get a palindrome (388868883).

The spelling of 144632442 in words is "one hundred forty-four million, six hundred thirty-two thousand, four hundred forty-two".