42430031040 has 112 divisors (see below), whose sum is σ = 134835704928. Its totient is φ = 11304566784.

The previous prime is 42430031023. The next prime is 42430031081. The reversal of 42430031040 is 4013003424.

It is a junction number, because it is equal to n+sod(n) for n = 42430030998 and 42430031016.

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, 1087714 + ... + 1126046.

Almost surely, 2^42430031040 is an apocalyptic number.

42430031040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42430031040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67417852464).

42430031040 is an abundant number, since it is smaller than the sum of its proper divisors (92405673888).

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

42430031040 is a wasteful number, since it uses less digits than its factorization.

42430031040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39506 (or 39496 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 42430031040 its reverse (4013003424), we get a palindrome (46443034464).

The spelling of 42430031040 in words is "forty-two billion, four hundred thirty million, thirty-one thousand, forty".