144407420520 has 128 divisors (see below), whose sum is σ = 478300515840. Its totient is φ = 34586051840.

The previous prime is 144407420513. The next prime is 144407420537. The reversal of 144407420520 is 25024704441.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 549474 + ... + 768593.

It is an arithmetic number, because the mean of its divisors is an integer number (3736722780).

Almost surely, 2^144407420520 is an apocalyptic number.

144407420520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144407420520 is an abundant number, since it is smaller than the sum of its proper divisors (333893095320).

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

144407420520 is a wasteful number, since it uses less digits than its factorization.

144407420520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318175 (or 1318171 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 33.

The spelling of 144407420520 in words is "one hundred forty-four billion, four hundred seven million, four hundred twenty thousand, five hundred twenty".