42442135140 has 48 divisors (see below), whose sum is σ = 118941419520. Its totient is φ = 11308051200.

The previous prime is 42442135069. The next prime is 42442135171. The reversal of 42442135140 is 4153124424.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42442135098 and 42442135107.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238225 + ... + 376344.

It is an arithmetic number, because the mean of its divisors is an integer number (2477946240).

Almost surely, 2^42442135140 is an apocalyptic number.

It is an amenable number.

42442135140 is an abundant number, since it is smaller than the sum of its proper divisors (76499284380).

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

42442135140 is a wasteful number, since it uses less digits than its factorization.

42442135140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 615732 (or 615730 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 42442135140 its reverse (4153124424), we get a palindrome (46595259564).

The spelling of 42442135140 in words is "forty-two billion, four hundred forty-two million, one hundred thirty-five thousand, one hundred forty".