100340406 has 96 divisors (see below), whose sum is σ = 241862400. Its totient is φ = 29937600.

The previous prime is 100340363. The next prime is 100340413. The reversal of 100340406 is 604043001.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664431 + ... + 664581.

It is an arithmetic number, because the mean of its divisors is an integer number (2519400).

Almost surely, 2^100340406 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100340406, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120931200).

100340406 is an abundant number, since it is smaller than the sum of its proper divisors (141521994).

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

100340406 is a wasteful number, since it uses less digits than its factorization.

100340406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 100340406 is about 10017.0058400702. The cubic root of 100340406 is about 464.6849617741.

Adding to 100340406 its reverse (604043001), we get a palindrome (704383407).

The spelling of 100340406 in words is "one hundred million, three hundred forty thousand, four hundred six".