42145401440 has 48 divisors (see below), whose sum is σ = 99920450448. Its totient is φ = 16798573056.

The previous prime is 42145401439. The next prime is 42145401479. The reversal of 42145401440 is 4410454124.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420107 + ... + 510666.

It is an arithmetic number, because the mean of its divisors is an integer number (2081676051).

Almost surely, 2^42145401440 is an apocalyptic number.

42145401440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42145401440 is an abundant number, since it is smaller than the sum of its proper divisors (57775049008).

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

42145401440 is a wasteful number, since it uses less digits than its factorization.

42145401440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 931071 (or 931063 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 42145401440 its reverse (4410454124), we get a palindrome (46555855564).

The spelling of 42145401440 in words is "forty-two billion, one hundred forty-five million, four hundred one thousand, four hundred forty".