340042440031 has 8 divisors (see below), whose sum is σ = 388928615040. Its totient is φ = 291233435928.

The previous prime is 340042439951. The next prime is 340042440037. The reversal of 340042440031 is 130044240043.

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

It is a cyclic number.

It is not a de Polignac number, because 340042440031 - 2⁷ = 340042439903 is a prime.

It is a super-2 number, since 2×340042440031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 340042439978 and 340042440005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340042440037) 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, 19283281 + ... + 19300906.

It is an arithmetic number, because the mean of its divisors is an integer number (48616076880).

Almost surely, 2^340042440031 is an apocalyptic number.

340042440031 is a deficient number, since it is larger than the sum of its proper divisors (48886175009).

340042440031 is a wasteful number, since it uses less digits than its factorization.

340042440031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38585453.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 340042440031 its reverse (130044240043), we get a palindrome (470086680074).

The spelling of 340042440031 in words is "three hundred forty billion, forty-two million, four hundred forty thousand, thirty-one".