144638984 has 32 divisors (see below), whose sum is σ = 316272000. Its totient is φ = 61986960.

The previous prime is 144638951. The next prime is 144638987. The reversal of 144638984 is 489836441.

It is not an unprimeable number, because it can be changed into a prime (144638987) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23612 + ... + 29099.

It is an arithmetic number, because the mean of its divisors is an integer number (9883500).

Almost surely, 2^144638984 is an apocalyptic number.

144638984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

144638984 is an abundant number, since it is smaller than the sum of its proper divisors (171633016).

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

144638984 is an equidigital number, since it uses as much as digits as its factorization.

144638984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52738 (or 52720 counting only the distinct ones).

The product of its digits is 663552, while the sum is 47.

The square root of 144638984 is about 12026.5948630525. The cubic root of 144638984 is about 524.9224181655.

The spelling of 144638984 in words is "one hundred forty-four million, six hundred thirty-eight thousand, nine hundred eighty-four".