34380978 has 8 divisors (see below), whose sum is σ = 68761968. Its totient is φ = 11460324.

The previous prime is 34380977. The next prime is 34381019. The reversal of 34380978 is 87908343.

It is a sphenic number, since it is the product of 3 distinct primes.

34380978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (34380977) 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, 2865076 + ... + 2865087.

It is an arithmetic number, because the mean of its divisors is an integer number (8595246).

Almost surely, 2^34380978 is an apocalyptic number.

34380978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34380978 is a wasteful number, since it uses less digits than its factorization.

34380978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5730168.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 34380978 is about 5863.5294831697. The cubic root of 34380978 is about 325.1667089492.

The spelling of 34380978 in words is "thirty-four million, three hundred eighty thousand, nine hundred seventy-eight".