400053328 has 40 divisors (see below), whose sum is σ = 792993888. Its totient is φ = 195441792.

The previous prime is 400053323. The next prime is 400053337. The reversal of 400053328 is 823350004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400053323) 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, 239151 + ... + 240817.

Almost surely, 2^400053328 is an apocalyptic number.

It is an amenable number.

400053328 is a deficient number, since it is larger than the sum of its proper divisors (392940560).

400053328 is a wasteful number, since it uses less digits than its factorization.

400053328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011 (or 2005 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 400053328 is about 20001.3331555674. Note that the first 3 decimals coincide. The cubic root of 400053328 is about 736.8390419450.

The spelling of 400053328 in words is "four hundred million, fifty-three thousand, three hundred twenty-eight".