421900106 has 8 divisors (see below), whose sum is σ = 646315200. Its totient is φ = 206461708.

The previous prime is 421900103. The next prime is 421900121. The reversal of 421900106 is 601009124.

It is a happy number.

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

It is a super-2 number, since 2×421900106² = 355999398885622472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (421900103) 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, 2244056 + ... + 2244243.

It is an arithmetic number, because the mean of its divisors is an integer number (80789400).

Almost surely, 2^421900106 is an apocalyptic number.

421900106 is a deficient number, since it is larger than the sum of its proper divisors (224415094).

421900106 is a wasteful number, since it uses less digits than its factorization.

421900106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4488348.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 421900106 is about 20540.2070583526. The cubic root of 421900106 is about 750.0148773345.

The spelling of 421900106 in words is "four hundred twenty-one million, nine hundred thousand, one hundred six".