421594042 has 8 divisors (see below), whose sum is σ = 645846336. Its totient is φ = 206311932.

The previous prime is 421594013. The next prime is 421594049. The reversal of 421594042 is 240495124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421593995 and 421594013.

It is not an unprimeable number, because it can be changed into a prime (421594049) 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, 2242428 + ... + 2242615.

It is an arithmetic number, because the mean of its divisors is an integer number (80730792).

Almost surely, 2^421594042 is an apocalyptic number.

421594042 is a deficient number, since it is larger than the sum of its proper divisors (224252294).

421594042 is a wasteful number, since it uses less digits than its factorization.

421594042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4485092.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 421594042 is about 20532.7553435967. The cubic root of 421594042 is about 749.8334693965.

The spelling of 421594042 in words is "four hundred twenty-one million, five hundred ninety-four thousand, forty-two".