100438966 has 8 divisors (see below), whose sum is σ = 151845120. Its totient is φ = 49823928.

The previous prime is 100438957. The next prime is 100438969. The reversal of 100438966 is 669834001.

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

It is a super-2 number, since 2×100438966² = 20175971782298312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100438969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197461 + ... + 197968.

It is an arithmetic number, because the mean of its divisors is an integer number (18980640).

Almost surely, 2^100438966 is an apocalyptic number.

100438966 is a deficient number, since it is larger than the sum of its proper divisors (51406154).

100438966 is a wasteful number, since it uses less digits than its factorization.

100438966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395558.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 100438966 is about 10021.9242663273. The cubic root of 100438966 is about 464.8370585689.

The spelling of 100438966 in words is "one hundred million, four hundred thirty-eight thousand, nine hundred sixty-six".