42404423502 has 48 divisors (see below), whose sum is σ = 98883327312. Its totient is φ = 12087532800.

The previous prime is 42404423491. The next prime is 42404423563. The reversal of 42404423502 is 20532440424.

42404423502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 42404423502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39249 + ... + 293852.

It is an arithmetic number, because the mean of its divisors is an integer number (2060069319).

Almost surely, 2^42404423502 is an apocalyptic number.

42404423502 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

42404423502 is an abundant number, since it is smaller than the sum of its proper divisors (56478903810).

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

42404423502 is a wasteful number, since it uses less digits than its factorization.

42404423502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333553 (or 333546 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 42404423502 its reverse (20532440424), we get a palindrome (62936863926).

The spelling of 42404423502 in words is "forty-two billion, four hundred four million, four hundred twenty-three thousand, five hundred two".