433640164 has 24 divisors (see below), whose sum is σ = 769991040. Its totient is φ = 213653856.

The previous prime is 433640153. The next prime is 433640191. The reversal of 433640164 is 461046334.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 212919 + ... + 214945.

It is an arithmetic number, because the mean of its divisors is an integer number (32082960).

Almost surely, 2^433640164 is an apocalyptic number.

It is an amenable number.

433640164 is a deficient number, since it is larger than the sum of its proper divisors (336350876).

433640164 is a wasteful number, since it uses less digits than its factorization.

433640164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2787 (or 2785 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 433640164 is about 20824.0285247596. The cubic root of 433640164 is about 756.9081241051.

Adding to 433640164 its reverse (461046334), we get a palindrome (894686498).

The spelling of 433640164 in words is "four hundred thirty-three million, six hundred forty thousand, one hundred sixty-four".