144342331440 has 80 divisors (see below), whose sum is σ = 461895484416. Its totient is φ = 37249632000.

The previous prime is 144342331433. The next prime is 144342331453. The reversal of 144342331440 is 44133243441.

It is a tau number, because it is divible by the number of its divisors (80).

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, 9692986 + ... + 9707865.

Almost surely, 2^144342331440 is an apocalyptic number.

144342331440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144342331440 is an abundant number, since it is smaller than the sum of its proper divisors (317553152976).

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

144342331440 is a wasteful number, since it uses less digits than its factorization.

144342331440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19400898 (or 19400892 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 144342331440 its reverse (44133243441), we get a palindrome (188475574881).

The spelling of 144342331440 in words is "one hundred forty-four billion, three hundred forty-two million, three hundred thirty-one thousand, four hundred forty".