40938243929 has 8 divisors (see below), whose sum is σ = 44707986720. Its totient is φ = 37176515200.

The previous prime is 40938243911. The next prime is 40938243943. The reversal of 40938243929 is 92934283904.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-40938243929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40938243959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1992827 + ... + 2013264.

It is an arithmetic number, because the mean of its divisors is an integer number (5588498340).

Almost surely, 2^40938243929 is an apocalyptic number.

It is an amenable number.

40938243929 is a deficient number, since it is larger than the sum of its proper divisors (3769742791).

40938243929 is a wasteful number, since it uses less digits than its factorization.

40938243929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4007031.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 40938243929 in words is "forty billion, nine hundred thirty-eight million, two hundred forty-three thousand, nine hundred twenty-nine".