100420422 has 8 divisors (see below), whose sum is σ = 200840856. Its totient is φ = 33473472.

The previous prime is 100420421. The next prime is 100420423. The reversal of 100420422 is 224024001.

It is an interprime number because it is at equal distance from previous prime (100420421) and next prime (100420423).

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

100420422 is an admirable number.

It is a super-2 number, since 2×100420422² = 20168522309316168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100420421) 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, 8368363 + ... + 8368374.

It is an arithmetic number, because the mean of its divisors is an integer number (25105107).

Almost surely, 2^100420422 is an apocalyptic number.

100420422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

100420422 is a wasteful number, since it uses less digits than its factorization.

100420422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16736742.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 100420422 is about 10020.9990519908. Note that the first 3 decimals coincide. The cubic root of 100420422 is about 464.8084492575.

Adding to 100420422 its reverse (224024001), we get a palindrome (324444423).

The spelling of 100420422 in words is "one hundred million, four hundred twenty thousand, four hundred twenty-two".