20040246042 has 8 divisors (see below), whose sum is σ = 40080492096. Its totient is φ = 6680082012.

The previous prime is 20040246041. The next prime is 20040246047. The reversal of 20040246042 is 24064204002.

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

20040246042 is an admirable number.

It is a super-2 number, since 2×20040246042² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20040246041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670020498 + ... + 1670020509.

It is an arithmetic number, because the mean of its divisors is an integer number (5010061512).

Almost surely, 2^20040246042 is an apocalyptic number.

20040246042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20040246042 is a wasteful number, since it uses less digits than its factorization.

20040246042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340041012.

The product of its (nonzero) digits is 3072, while the sum is 24.

The spelling of 20040246042 in words is "twenty billion, forty million, two hundred forty-six thousand, forty-two".