31434142240 has 48 divisors (see below), whose sum is σ = 74283592320. Its totient is φ = 12570197760.

The previous prime is 31434142211. The next prime is 31434142261. The reversal of 31434142240 is 4224143413.

It is a junction number, because it is equal to n+sod(n) for n = 31434142199 and 31434142208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601975 + ... + 652105.

It is an arithmetic number, because the mean of its divisors is an integer number (1547574840).

Almost surely, 2^31434142240 is an apocalyptic number.

It is an amenable number.

31434142240 is an abundant number, since it is smaller than the sum of its proper divisors (42849450080).

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

31434142240 is a wasteful number, since it uses less digits than its factorization.

31434142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54065 (or 54057 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31434142240 its reverse (4224143413), we get a palindrome (35658285653).

The spelling of 31434142240 in words is "thirty-one billion, four hundred thirty-four million, one hundred forty-two thousand, two hundred forty".