100424890 has 8 divisors (see below), whose sum is σ = 180764820. Its totient is φ = 40169952.

The previous prime is 100424881. The next prime is 100424917. The reversal of 100424890 is 98424001.

It can be written as a sum of positive squares in 2 ways, for example, as 99980001 + 444889 = 9999^2 + 667^2 .

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

It is an unprimeable number.

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, 5021235 + ... + 5021254.

Almost surely, 2^100424890 is an apocalyptic number.

100424890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100424890 is a deficient number, since it is larger than the sum of its proper divisors (80339930).

100424890 is a wasteful number, since it uses less digits than its factorization.

100424890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10042496.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 100424890 is about 10021.2219813753. The cubic root of 100424890 is about 464.8153427204.

Adding to 100424890 its reverse (98424001), we get a palindrome (198848891).

The spelling of 100424890 in words is "one hundred million, four hundred twenty-four thousand, eight hundred ninety".