100340405 has 8 divisors (see below), whose sum is σ = 131354784. Its totient is φ = 72974800.

The previous prime is 100340363. The next prime is 100340413. The reversal of 100340405 is 504043001.

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

It is not a de Polignac number, because 100340405 - 2¹⁰ = 100339381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 912131 + ... + 912240.

It is an arithmetic number, because the mean of its divisors is an integer number (16419348).

Almost surely, 2^100340405 is an apocalyptic number.

It is an amenable number.

100340405 is a deficient number, since it is larger than the sum of its proper divisors (31014379).

100340405 is a wasteful number, since it uses less digits than its factorization.

100340405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1824387.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 100340405 is about 10017.0057901551. The cubic root of 100340405 is about 464.6849602304.

Adding to 100340405 its reverse (504043001), we get a palindrome (604383406).

The spelling of 100340405 in words is "one hundred million, three hundred forty thousand, four hundred five".