405001106 has 4 divisors (see below), whose sum is σ = 607501662. Its totient is φ = 202500552.

The previous prime is 405001097. The next prime is 405001109. The reversal of 405001106 is 601100504.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 312052225 + 92948881 = 17665^2 + 9641^2 .

It is a super-2 number, since 2×405001106² = 328051791722446472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (405001109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101250275 + ... + 101250278.

Almost surely, 2^405001106 is an apocalyptic number.

405001106 is a deficient number, since it is larger than the sum of its proper divisors (202500556).

405001106 is a wasteful number, since it uses less digits than its factorization.

405001106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202500555.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 405001106 is about 20124.6392762703. The cubic root of 405001106 is about 739.8642957876.

The spelling of 405001106 in words is "four hundred five million, one thousand, one hundred six".