400144011 has 32 divisors (see below), whose sum is σ = 591271488. Its totient is φ = 239616000.

The previous prime is 400143929. The next prime is 400144049. The reversal of 400144011 is 110441004.

It is not a de Polignac number, because 400144011 - 2¹⁰ = 400142987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (400144061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98011 + ... + 102011.

It is an arithmetic number, because the mean of its divisors is an integer number (18477234).

Almost surely, 2^400144011 is an apocalyptic number.

400144011 is a deficient number, since it is larger than the sum of its proper divisors (191127477).

400144011 is a wasteful number, since it uses less digits than its factorization.

400144011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4111.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 400144011 is about 20003.5999510088. The cubic root of 400144011 is about 736.8947126286.

Adding to 400144011 its reverse (110441004), we get a palindrome (510585015).

The spelling of 400144011 in words is "four hundred million, one hundred forty-four thousand, eleven".