400802011 has 8 divisors (see below), whose sum is σ = 424266480. Its totient is φ = 377980512.

The previous prime is 400802009. The next prime is 400802023. The reversal of 400802011 is 110208004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 400802011 - 2¹ = 400802009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400802111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159460 + ... + 161953.

It is an arithmetic number, because the mean of its divisors is an integer number (53033310).

Almost surely, 2^400802011 is an apocalyptic number.

400802011 is a deficient number, since it is larger than the sum of its proper divisors (23464469).

400802011 is a wasteful number, since it uses less digits than its factorization.

400802011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321485.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 400802011 is about 20020.0402347248. The cubic root of 400802011 is about 737.2984099407.

The spelling of 400802011 in words is "four hundred million, eight hundred two thousand, eleven".