40000031104 has 128 divisors (see below), whose sum is σ = 91434562560. Its totient is φ = 17262336000.

The previous prime is 40000031089. The next prime is 40000031179. The reversal of 40000031104 is 40113000004.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

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, 2304699 + ... + 2321989.

It is an arithmetic number, because the mean of its divisors is an integer number (714332520).

Almost surely, 2^40000031104 is an apocalyptic number.

40000031104 is a gapful number since it is divisible by the number (44) 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 40000031104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45717281280).

40000031104 is an abundant number, since it is smaller than the sum of its proper divisors (51434531456).

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

40000031104 is a wasteful number, since it uses less digits than its factorization.

40000031104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17400 (or 17388 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 40000031104 its reverse (40113000004), we get a palindrome (80113031108).

The spelling of 40000031104 in words is "forty billion, thirty-one thousand, one hundred four".