400603146 has 16 divisors (see below), whose sum is σ = 802460064. Its totient is φ = 133325424.

The previous prime is 400603141. The next prime is 400603157. The reversal of 400603146 is 641306004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400603141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48061 + ... + 55776.

It is an arithmetic number, because the mean of its divisors is an integer number (50153754).

Almost surely, 2^400603146 is an apocalyptic number.

400603146 is an abundant number, since it is smaller than the sum of its proper divisors (401856918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

400603146 is a wasteful number, since it uses less digits than its factorization.

400603146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104485.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 400603146 is about 20015.0729701393. The cubic root of 400603146 is about 737.1764485559.

The spelling of 400603146 in words is "four hundred million, six hundred three thousand, one hundred forty-six".