20404323042 has 8 divisors (see below), whose sum is σ = 40808646096. Its totient is φ = 6801441012.

The previous prime is 20404323029. The next prime is 20404323061. The reversal of 20404323042 is 24032340402.

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

20404323042 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700360248 + ... + 1700360259.

It is an arithmetic number, because the mean of its divisors is an integer number (5101080762).

Almost surely, 2^20404323042 is an apocalyptic number.

20404323042 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.

20404323042 is a wasteful number, since it uses less digits than its factorization.

20404323042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3400720512.

The product of its (nonzero) digits is 4608, while the sum is 24.

Adding to 20404323042 its reverse (24032340402), we get a palindrome (44436663444).

The spelling of 20404323042 in words is "twenty billion, four hundred four million, three hundred twenty-three thousand, forty-two".