100430445 has 32 divisors (see below), whose sum is σ = 163481472. Its totient is φ = 52641792.

The previous prime is 100430437. The next prime is 100430497. The reversal of 100430445 is 544034001.

It is not a de Polignac number, because 100430445 - 2³ = 100430437 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 326982 + ... + 327288.

It is an arithmetic number, because the mean of its divisors is an integer number (5108796).

Almost surely, 2^100430445 is an apocalyptic number.

100430445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100430445 is a deficient number, since it is larger than the sum of its proper divisors (63051027).

100430445 is a wasteful number, since it uses less digits than its factorization.

100430445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 621.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 100430445 is about 10021.4991393504. The cubic root of 100430445 is about 464.8239129783.

Adding to 100430445 its reverse (544034001), we get a palindrome (644464446).

The spelling of 100430445 in words is "one hundred million, four hundred thirty thousand, four hundred forty-five".