42020040398 has 8 divisors (see below), whose sum is σ = 72034354992. Its totient is φ = 18008588736.

The previous prime is 42020040397. The next prime is 42020040427. The reversal of 42020040398 is 89304002024.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42020040397) 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, 1500715715 + ... + 1500715742.

It is an arithmetic number, because the mean of its divisors is an integer number (9004294374).

Almost surely, 2^42020040398 is an apocalyptic number.

42020040398 is a deficient number, since it is larger than the sum of its proper divisors (30014314594).

42020040398 is a wasteful number, since it uses less digits than its factorization.

42020040398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3001431466.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 42020040398 in words is "forty-two billion, twenty million, forty thousand, three hundred ninety-eight".