144402343421 has 8 divisors (see below), whose sum is σ = 165043752384. Its totient is φ = 123764060160.

The previous prime is 144402343367. The next prime is 144402343427. The reversal of 144402343421 is 124343204441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144402343421 - 2⁶ = 144402343357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144402343427) 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, 681575 + ... + 867956.

It is an arithmetic number, because the mean of its divisors is an integer number (20630469048).

Almost surely, 2^144402343421 is an apocalyptic number.

It is an amenable number.

144402343421 is a deficient number, since it is larger than the sum of its proper divisors (20641408963).

144402343421 is a wasteful number, since it uses less digits than its factorization.

144402343421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562851.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 144402343421 its reverse (124343204441), we get a palindrome (268745547862).

The spelling of 144402343421 in words is "one hundred forty-four billion, four hundred two million, three hundred forty-three thousand, four hundred twenty-one".