406402611 has 8 divisors (see below), whose sum is σ = 548399040. Its totient is φ = 267670632.

The previous prime is 406402597. The next prime is 406402649. The reversal of 406402611 is 116204604.

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

It is not a de Polignac number, because 406402611 - 2⁷ = 406402483 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406402411) 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, 815821 + ... + 816318.

It is an arithmetic number, because the mean of its divisors is an integer number (68549880).

Almost surely, 2^406402611 is an apocalyptic number.

406402611 is a deficient number, since it is larger than the sum of its proper divisors (141996429).

406402611 is a wasteful number, since it uses less digits than its factorization.

406402611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632225.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 406402611 is about 20159.4298282466. The cubic root of 406402611 is about 740.7167458991.

The spelling of 406402611 in words is "four hundred six million, four hundred two thousand, six hundred eleven".