42345445044 has 96 divisors (see below), whose sum is σ = 122003884800. Its totient is φ = 11386991616.

The previous prime is 42345445039. The next prime is 42345445063. The reversal of 42345445044 is 44054454324.

It is a junction number, because it is equal to n+sod(n) for n = 42345444993 and 42345445011.

It is a congruent number.

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, 232617 + ... + 372560.

It is an arithmetic number, because the mean of its divisors is an integer number (1270873800).

Almost surely, 2^42345445044 is an apocalyptic number.

It is an amenable number.

42345445044 is an abundant number, since it is smaller than the sum of its proper divisors (79658439756).

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

42345445044 is a wasteful number, since it uses less digits than its factorization.

42345445044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605222 (or 605206 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 39.

Adding to 42345445044 its reverse (44054454324), we get a palindrome (86399899368).

The spelling of 42345445044 in words is "forty-two billion, three hundred forty-five million, four hundred forty-five thousand, forty-four".