400553512 has 16 divisors (see below), whose sum is σ = 752739840. Its totient is φ = 199822896.

The previous prime is 400553467. The next prime is 400553513. The reversal of 400553512 is 215355004.

It is not an unprimeable number, because it can be changed into a prime (400553513) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52968 + ... + 60055.

It is an arithmetic number, because the mean of its divisors is an integer number (47046240).

Almost surely, 2^400553512 is an apocalyptic number.

It is an amenable number.

400553512 is a deficient number, since it is larger than the sum of its proper divisors (352186328).

400553512 is a wasteful number, since it uses less digits than its factorization.

400553512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113472 (or 113468 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 400553512 is about 20013.8330161916. The cubic root of 400553512 is about 737.1460023588.

The spelling of 400553512 in words is "four hundred million, five hundred fifty-three thousand, five hundred twelve".