42440348764 has 36 divisors (see below), whose sum is σ = 81685329264. Its totient is φ = 19279480000.

The previous prime is 42440348723. The next prime is 42440348767. The reversal of 42440348764 is 46784304424.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42440348767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807489 + ... + 858439.

It is an arithmetic number, because the mean of its divisors is an integer number (2269036924).

Almost surely, 2^42440348764 is an apocalyptic number.

42440348764 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

42440348764 is a deficient number, since it is larger than the sum of its proper divisors (39244980500).

42440348764 is a wasteful number, since it uses less digits than its factorization.

42440348764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52698 (or 52685 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 46.

The spelling of 42440348764 in words is "forty-two billion, four hundred forty million, three hundred forty-eight thousand, seven hundred sixty-four".