400032068 has 12 divisors (see below), whose sum is σ = 700370832. Its totient is φ = 199926120.

The previous prime is 400032067. The next prime is 400032107. The reversal of 400032068 is 860230004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (400032067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11918 + ... + 30693.

It is an arithmetic number, because the mean of its divisors is an integer number (58364236).

Almost surely, 2^400032068 is an apocalyptic number.

It is an amenable number.

400032068 is a deficient number, since it is larger than the sum of its proper divisors (300338764).

400032068 is a wasteful number, since it uses less digits than its factorization.

400032068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44962 (or 44960 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 400032068 is about 20000.8016839326. The cubic root of 400032068 is about 736.8259891223.

The spelling of 400032068 in words is "four hundred million, thirty-two thousand, sixty-eight".