100423530 has 32 divisors (see below), whose sum is σ = 267796800. Its totient is φ = 26779536.

The previous prime is 100423529. The next prime is 100423541. The reversal of 100423530 is 35324001.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 15 ways as a sum of consecutive naturals, for example, 185700 + ... + 186239.

It is an arithmetic number, because the mean of its divisors is an integer number (8368650).

Almost surely, 2^100423530 is an apocalyptic number.

100423530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100423530 is an abundant number, since it is smaller than the sum of its proper divisors (167373270).

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

100423530 is a wasteful number, since it uses less digits than its factorization.

100423530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371955 (or 371949 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 100423530 is about 10021.1541251495. The cubic root of 100423530 is about 464.8132444633.

Adding to 100423530 its reverse (35324001), we get a palindrome (135747531).

The spelling of 100423530 in words is "one hundred million, four hundred twenty-three thousand, five hundred thirty".