400433146 has 16 divisors (see below), whose sum is σ = 612662400. Its totient is φ = 196249248.

The previous prime is 400433141. The next prime is 400433167. The reversal of 400433146 is 641334004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 400433146.

It is not an unprimeable number, because it can be changed into a prime (400433141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12846 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (38291400).

Almost surely, 2^400433146 is an apocalyptic number.

400433146 is a deficient number, since it is larger than the sum of its proper divisors (212229254).

400433146 is a wasteful number, since it uses less digits than its factorization.

400433146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18453.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 400433146 is about 20010.8257200946. The cubic root of 400433146 is about 737.0721577063.

The spelling of 400433146 in words is "four hundred million, four hundred thirty-three thousand, one hundred forty-six".