100427500 has 90 divisors (see below), whose sum is σ = 234971660. Its totient is φ = 37536000.

The previous prime is 100427497. The next prime is 100427501. The reversal of 100427500 is 5724001.

It is not an unprimeable number, because it can be changed into a prime (100427501) 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 29 ways as a sum of consecutive naturals, for example, 722431 + ... + 722569.

Almost surely, 2^100427500 is an apocalyptic number.

100427500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100427500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117485830).

100427500 is an abundant number, since it is smaller than the sum of its proper divisors (134544160).

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

100427500 is a wasteful number, since it uses less digits than its factorization.

100427500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 100427500 is about 10021.3522041689. The cubic root of 100427500 is about 464.8193694696.

The spelling of 100427500 in words is "one hundred million, four hundred twenty-seven thousand, five hundred".