144324642 has 64 divisors (see below), whose sum is σ = 369644544. Its totient is φ = 36469440.

The previous prime is 144324637. The next prime is 144324643. The reversal of 144324642 is 246423441.

It is not an unprimeable number, because it can be changed into a prime (144324643) 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, 12873 + ... + 21315.

It is an arithmetic number, because the mean of its divisors is an integer number (5775696).

Almost surely, 2^144324642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144324642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (184822272).

144324642 is an abundant number, since it is smaller than the sum of its proper divisors (225319902).

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

144324642 is a wasteful number, since it uses less digits than its factorization.

144324642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8503.

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

The square root of 144324642 is about 12013.5191347082. The cubic root of 144324642 is about 524.5418733607.

The spelling of 144324642 in words is "one hundred forty-four million, three hundred twenty-four thousand, six hundred forty-two".