40342431029 has 4 divisors (see below), whose sum is σ = 40414087776. Its totient is φ = 40270774284.

The previous prime is 40342431023. The next prime is 40342431097. The reversal of 40342431029 is 92013424304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40342431029 - 2⁴ = 40342431013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40342430986 and 40342431004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40342431023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35827529 + ... + 35828654.

It is an arithmetic number, because the mean of its divisors is an integer number (10103521944).

Almost surely, 2^40342431029 is an apocalyptic number.

It is an amenable number.

40342431029 is a deficient number, since it is larger than the sum of its proper divisors (71656747).

40342431029 is an equidigital number, since it uses as much as digits as its factorization.

40342431029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71656746.

The product of its (nonzero) digits is 20736, while the sum is 32.

The spelling of 40342431029 in words is "forty billion, three hundred forty-two million, four hundred thirty-one thousand, twenty-nine".