100398458 has 8 divisors (see below), whose sum is σ = 150853428. Its totient is φ = 50113984.

The previous prime is 100398437. The next prime is 100398469. The reversal of 100398458 is 854893001.

It can be written as a sum of positive squares in 2 ways, for example, as 95394289 + 5004169 = 9767^2 + 2237^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41141 + ... + 43512.

Almost surely, 2^100398458 is an apocalyptic number.

100398458 is a deficient number, since it is larger than the sum of its proper divisors (50454970).

100398458 is an equidigital number, since it uses as much as digits as its factorization.

100398458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85248.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 100398458 is about 10019.9030933438. The cubic root of 100398458 is about 464.7745590820.

The spelling of 100398458 in words is "one hundred million, three hundred ninety-eight thousand, four hundred fifty-eight".