144440450040 has 32 divisors (see below), whose sum is σ = 433321350480. Its totient is φ = 38517453312.

The previous prime is 144440450027. The next prime is 144440450059. The reversal of 144440450040 is 40054044441.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601835089 + ... + 601835328.

Almost surely, 2^144440450040 is an apocalyptic number.

144440450040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144440450040 is an abundant number, since it is smaller than the sum of its proper divisors (288880900440).

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

144440450040 is a wasteful number, since it uses less digits than its factorization.

144440450040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1203670431 (or 1203670427 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 30.

Adding to 144440450040 its reverse (40054044441), we get a palindrome (184494494481).

The spelling of 144440450040 in words is "one hundred forty-four billion, four hundred forty million, four hundred fifty thousand, forty".