100405630 has 32 divisors (see below), whose sum is σ = 198785664. Its totient is φ = 36281856.

The previous prime is 100405619. The next prime is 100405631. The reversal of 100405630 is 36504001.

It is a junction number, because it is equal to n+sod(n) for n = 100405598 and 100405607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100405631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2107 + ... + 14326.

It is an arithmetic number, because the mean of its divisors is an integer number (6212052).

Almost surely, 2^100405630 is an apocalyptic number.

100405630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100405630 is a deficient number, since it is larger than the sum of its proper divisors (98380034).

100405630 is a wasteful number, since it uses less digits than its factorization.

100405630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16500.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 100405630 is about 10020.2609746453. The cubic root of 100405630 is about 464.7856259312.

Adding to 100405630 its reverse (36504001), we get a palindrome (136909631).

The spelling of 100405630 in words is "one hundred million, four hundred five thousand, six hundred thirty".