144402013340 has 48 divisors (see below), whose sum is σ = 327270277152. Its totient is φ = 53203451136.

The previous prime is 144402013339. The next prime is 144402013363. The reversal of 144402013340 is 43310204441.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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, 473219 + ... + 716058.

It is an arithmetic number, because the mean of its divisors is an integer number (6818130774).

Almost surely, 2^144402013340 is an apocalyptic number.

144402013340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144402013340 is an abundant number, since it is smaller than the sum of its proper divisors (182868263812).

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

144402013340 is a wasteful number, since it uses less digits than its factorization.

144402013340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189766 (or 1189764 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 144402013340 its reverse (43310204441), we get a palindrome (187712217781).

The spelling of 144402013340 in words is "one hundred forty-four billion, four hundred two million, thirteen thousand, three hundred forty".