421650022 has 4 divisors (see below), whose sum is σ = 632475036. Its totient is φ = 210825010.

The previous prime is 421650013. The next prime is 421650023. The reversal of 421650022 is 220056124.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 421649975 and 421650002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421650023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105412504 + ... + 105412507.

It is an arithmetic number, because the mean of its divisors is an integer number (158118759).

Almost surely, 2^421650022 is an apocalyptic number.

421650022 is a deficient number, since it is larger than the sum of its proper divisors (210825014).

421650022 is a wasteful number, since it uses less digits than its factorization.

421650022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210825013.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 421650022 is about 20534.1184860709. The cubic root of 421650022 is about 749.8666559976.

The spelling of 421650022 in words is "four hundred twenty-one million, six hundred fifty thousand, twenty-two".