405042911 has 16 divisors (see below), whose sum is σ = 499699200. Its totient is φ = 319711968.

The previous prime is 405042899. The next prime is 405042917. The reversal of 405042911 is 119240504.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-405042911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405042917) 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, 34880 + ... + 45018.

It is an arithmetic number, because the mean of its divisors is an integer number (31231200).

Almost surely, 2^405042911 is an apocalyptic number.

405042911 is a deficient number, since it is larger than the sum of its proper divisors (94656289).

405042911 is a wasteful number, since it uses less digits than its factorization.

405042911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10598.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 405042911 is about 20125.6779016261. The cubic root of 405042911 is about 739.8897516544.

The spelling of 405042911 in words is "four hundred five million, forty-two thousand, nine hundred eleven".