405861411 has 8 divisors (see below), whose sum is σ = 549225664. Its totient is φ = 266535720.

The previous prime is 405861389. The next prime is 405861431. The reversal of 405861411 is 114168504.

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

It is not a de Polignac number, because 405861411 - 2⁹ = 405860899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405861431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009405 + ... + 1009806.

It is an arithmetic number, because the mean of its divisors is an integer number (68653208).

Almost surely, 2^405861411 is an apocalyptic number.

405861411 is a deficient number, since it is larger than the sum of its proper divisors (143364253).

405861411 is a wasteful number, since it uses less digits than its factorization.

405861411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2019281.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 405861411 is about 20146.0023577880. The cubic root of 405861411 is about 740.3877995369.

The spelling of 405861411 in words is "four hundred five million, eight hundred sixty-one thousand, four hundred eleven".