421433223450042 has 16 divisors (see below), whose sum is σ = 842867992244160. Its totient is φ = 140477483592672.

The previous prime is 421433223449993. The next prime is 421433223450059. The reversal of 421433223450042 is 240054322334124.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60828942 + ... + 67401977.

It is an arithmetic number, because the mean of its divisors is an integer number (52679249515260).

Almost surely, 2^{421433223450042} is an apocalyptic number.

421433223450042 is an abundant number, since it is smaller than the sum of its proper divisors (421434768794118).

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

421433223450042 is a wasteful number, since it uses less digits than its factorization.

421433223450042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128778677.

The product of its (nonzero) digits is 552960, while the sum is 39.

Adding to 421433223450042 its reverse (240054322334124), we get a palindrome (661487545784166).

The spelling of 421433223450042 in words is "four hundred twenty-one trillion, four hundred thirty-three billion, two hundred twenty-three million, four hundred fifty thousand, forty-two".