31040441432 has 64 divisors (see below), whose sum is σ = 78143788800. Its totient is φ = 11163392640.

The previous prime is 31040441429. The next prime is 31040441473. The reversal of 31040441432 is 23414404013.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1930082 + ... + 1946097.

It is an arithmetic number, because the mean of its divisors is an integer number (1220996700).

Almost surely, 2^31040441432 is an apocalyptic number.

It is an amenable number.

31040441432 is an abundant number, since it is smaller than the sum of its proper divisors (47103347368).

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

31040441432 is a wasteful number, since it uses less digits than its factorization.

31040441432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876216 (or 3876212 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31040441432 its reverse (23414404013), we get a palindrome (54454845445).

The spelling of 31040441432 in words is "thirty-one billion, forty million, four hundred forty-one thousand, four hundred thirty-two".