42334431031440 has 60 divisors (see below), whose sum is σ = 142173130883004. Its totient is φ = 11289181608192.

The previous prime is 42334431031433. The next prime is 42334431031463. The reversal of 42334431031440 is 4413013443324.

42334431031440 is a `hidden beast` number, since 4 + 2 + 334 + 4 + 3 + 1 + 0 + 314 + 4 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 26118314129664 + 16216116901776 = 5110608^2 + 4026924^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 42334431031395 and 42334431031404.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29398909719 + ... + 29398911158.

Almost surely, 2^{42334431031440} is an apocalyptic number.

42334431031440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42334431031440 is an abundant number, since it is smaller than the sum of its proper divisors (99838699851564).

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

42334431031440 is a wasteful number, since it uses less digits than its factorization.

42334431031440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58797820896 (or 58797820887 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 42334431031440 its reverse (4413013443324), we get a palindrome (46747444474764).

The spelling of 42334431031440 in words is "forty-two trillion, three hundred thirty-four billion, four hundred thirty-one million, thirty-one thousand, four hundred forty".