400604011 has 4 divisors (see below), whose sum is σ = 400707000. Its totient is φ = 400501024.

The previous prime is 400604003. The next prime is 400604021. The reversal of 400604011 is 110406004.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 400604011 - 2³ = 400604003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400604021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45421 + ... + 53518.

It is an arithmetic number, because the mean of its divisors is an integer number (100176750).

Almost surely, 2^400604011 is an apocalyptic number.

400604011 is a deficient number, since it is larger than the sum of its proper divisors (102989).

400604011 is an equidigital number, since it uses as much as digits as its factorization.

400604011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102988.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 400604011 is about 20015.0945788422. The cubic root of 400604011 is about 737.1769791369.

The spelling of 400604011 in words is "four hundred million, six hundred four thousand, eleven".