3433643378 has 12 divisors (see below), whose sum is σ = 5661255390. Its totient is φ = 1560746880.

The previous prime is 3433643377. The next prime is 3433643393. The reversal of 3433643378 is 8733463343.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3433608409 + 34969 = 58597^2 + 187^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3433643371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7094063 + ... + 7094546.

Almost surely, 2^3433643378 is an apocalyptic number.

3433643378 is a deficient number, since it is larger than the sum of its proper divisors (2227612012).

3433643378 is a wasteful number, since it uses less digits than its factorization.

3433643378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14188633 (or 14188622 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 44.

The square root of 3433643378 is about 58597.2983848232. The cubic root of 3433643378 is about 1508.6380682161.

The spelling of 3433643378 in words is "three billion, four hundred thirty-three million, six hundred forty-three thousand, three hundred seventy-eight".