34643378 has 32 divisors (see below), whose sum is σ = 65138688. Its totient is φ = 13424400.

The previous prime is 34643363. The next prime is 34643381. The reversal of 34643378 is 87334643.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 34463 + ... + 35453.

It is an arithmetic number, because the mean of its divisors is an integer number (2035584).

Almost surely, 2^34643378 is an apocalyptic number.

34643378 is a deficient number, since it is larger than the sum of its proper divisors (30495310).

34643378 is a wasteful number, since it uses less digits than its factorization.

34643378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238.

The product of its digits is 145152, while the sum is 38.

The square root of 34643378 is about 5885.8625536110. The cubic root of 34643378 is about 325.9918512021.

The spelling of 34643378 in words is "thirty-four million, six hundred forty-three thousand, three hundred seventy-eight".