400144006 has 16 divisors (see below), whose sum is σ = 608731200. Its totient is φ = 197241408.

The previous prime is 400143929. The next prime is 400144049. The reversal of 400144006 is 600441004.

It is a congruent number.

It is an unprimeable number.

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, 133290 + ... + 136258.

It is an arithmetic number, because the mean of its divisors is an integer number (38045700).

Almost surely, 2^400144006 is an apocalyptic number.

400144006 is a deficient number, since it is larger than the sum of its proper divisors (208587194).

400144006 is a wasteful number, since it uses less digits than its factorization.

400144006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3903.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 400144006 is about 20003.5998260313. The cubic root of 400144006 is about 736.8947095593.

The spelling of 400144006 in words is "four hundred million, one hundred forty-four thousand, six".