40839234944 has 64 divisors (see below), whose sum is σ = 81929076480. Its totient is φ = 20277043200.

The previous prime is 40839234911. The next prime is 40839234973. The reversal of 40839234944 is 44943293804.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×40839234944² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40839234892 and 40839234901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18897224 + ... + 18899384.

It is an arithmetic number, because the mean of its divisors is an integer number (1280141820).

Almost surely, 2^40839234944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40839234944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40964538240).

40839234944 is an abundant number, since it is smaller than the sum of its proper divisors (41089841536).

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

40839234944 is a wasteful number, since it uses less digits than its factorization.

40839234944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139 (or 3127 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 50.

The spelling of 40839234944 in words is "forty billion, eight hundred thirty-nine million, two hundred thirty-four thousand, nine hundred forty-four".