400544150 has 12 divisors (see below), whose sum is σ = 745012212. Its totient is φ = 160217640.

The previous prime is 400544147. The next prime is 400544173. The reversal of 400544150 is 51445004.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4005392 + ... + 4005491.

It is an arithmetic number, because the mean of its divisors is an integer number (62084351).

Almost surely, 2^400544150 is an apocalyptic number.

400544150 is a deficient number, since it is larger than the sum of its proper divisors (344468062).

400544150 is a wasteful number, since it uses less digits than its factorization.

400544150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010895 (or 8010890 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 400544150 is about 20013.5991265939. The cubic root of 400544150 is about 737.1402592937.

Adding to 400544150 its reverse (51445004), we get a palindrome (451989154).

The spelling of 400544150 in words is "four hundred million, five hundred forty-four thousand, one hundred fifty".