144589449220 has 48 divisors (see below), whose sum is σ = 310326847488. Its totient is φ = 56563498880.

The previous prime is 144589449203. The next prime is 144589449259. The reversal of 144589449220 is 22944985441.

It is a super-2 number, since 2×144589449220² (a number of 23 digits) contains 22 as substring.

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, 1234605 + ... + 1346635.

It is an arithmetic number, because the mean of its divisors is an integer number (6465142656).

Almost surely, 2^144589449220 is an apocalyptic number.

144589449220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144589449220 is an abundant number, since it is smaller than the sum of its proper divisors (165737398268).

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

144589449220 is a wasteful number, since it uses less digits than its factorization.

144589449220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113460 (or 113458 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 144589449220 in words is "one hundred forty-four billion, five hundred eighty-nine million, four hundred forty-nine thousand, two hundred twenty".