144040020320040 has 128 divisors (see below), whose sum is σ = 465370260284160. Its totient is φ = 35455228268544.

The previous prime is 144040020320033. The next prime is 144040020320057. The reversal of 144040020320040 is 40023020040441.

It is a happy number.

It is a super-2 number, since 2×144040020320040² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71906112 + ... + 73882128.

It is an arithmetic number, because the mean of its divisors is an integer number (3635705158470).

Almost surely, 2^{144040020320040} is an apocalyptic number.

144040020320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144040020320040 is an abundant number, since it is smaller than the sum of its proper divisors (321330239964120).

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

144040020320040 is a wasteful number, since it uses less digits than its factorization.

144040020320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022771 (or 2022767 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 144040020320040 its reverse (40023020040441), we get a palindrome (184063040360481).

The spelling of 144040020320040 in words is "one hundred forty-four trillion, forty billion, twenty million, three hundred twenty thousand, forty".