100005406 has 8 divisors (see below), whose sum is σ = 152247240. Its totient is φ = 49256328.

The previous prime is 100005397. The next prime is 100005421. The reversal of 100005406 is 604500001.

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

It is a self number, because there is not a number n which added to its sum of digits gives 100005406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373021 + ... + 373288.

It is an arithmetic number, because the mean of its divisors is an integer number (19030905).

Almost surely, 2^100005406 is an apocalyptic number.

100005406 is a deficient number, since it is larger than the sum of its proper divisors (52241834).

100005406 is an equidigital number, since it uses as much as digits as its factorization.

100005406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746378.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100005406 is about 10000.2702963470. The cubic root of 100005406 is about 464.1672473536.

Adding to 100005406 its reverse (604500001), we get a palindrome (704505407).

The spelling of 100005406 in words is "one hundred million, five thousand, four hundred six".