400441616 has 40 divisors (see below), whose sum is σ = 789458400. Its totient is φ = 196739840.

The previous prime is 400441607. The next prime is 400441651. The reversal of 400441616 is 616144004.

It is an unprimeable number.

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, 254111 + ... + 255681.

It is an arithmetic number, because the mean of its divisors is an integer number (19736460).

Almost surely, 2^400441616 is an apocalyptic number.

It is an amenable number.

400441616 is a deficient number, since it is larger than the sum of its proper divisors (389016784).

400441616 is a wasteful number, since it uses less digits than its factorization.

400441616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 400441616 is about 20011.0373544202. The cubic root of 400441616 is about 737.0773545431.

The spelling of 400441616 in words is "four hundred million, four hundred forty-one thousand, six hundred sixteen".