31434062440 has 48 divisors (see below), whose sum is σ = 77740864740. Its totient is φ = 11430566400.

The previous prime is 31434062431. The next prime is 31434062447. The reversal of 31434062440 is 4426043413.

It can be written as a sum of positive squares in 2 ways, for example, as 26425103364 + 5008959076 = 162558^2 + 70774^2 .

It is not an unprimeable number, because it can be changed into a prime (31434062447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3242481 + ... + 3252160.

Almost surely, 2^31434062440 is an apocalyptic number.

It is an amenable number.

31434062440 is an abundant number, since it is smaller than the sum of its proper divisors (46306802300).

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

31434062440 is a wasteful number, since it uses less digits than its factorization.

31434062440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6494674 (or 6494659 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

The spelling of 31434062440 in words is "thirty-one billion, four hundred thirty-four million, sixty-two thousand, four hundred forty".