42402440039 has 8 divisors (see below), whose sum is σ = 43408880112. Its totient is φ = 41407502400.

The previous prime is 42402440021. The next prime is 42402440053. The reversal of 42402440039 is 93004420424.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42402440039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42402439987 and 42402440014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42402040039) 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, 2868149 + ... + 2882894.

It is an arithmetic number, because the mean of its divisors is an integer number (5426110014).

Almost surely, 2^42402440039 is an apocalyptic number.

42402440039 is a deficient number, since it is larger than the sum of its proper divisors (1006440073).

42402440039 is a wasteful number, since it uses less digits than its factorization.

42402440039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751217.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 42402440039 in words is "forty-two billion, four hundred two million, four hundred forty thousand, thirty-nine".