34400078 has 16 divisors (see below), whose sum is σ = 55454544. Its totient is φ = 15945600.

The previous prime is 34400063. The next prime is 34400083. The reversal of 34400078 is 87000443.

34400078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5273 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (3465909).

Almost surely, 2^34400078 is an apocalyptic number.

34400078 is a deficient number, since it is larger than the sum of its proper divisors (21054466).

34400078 is a wasteful number, since it uses less digits than its factorization.

34400078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15187.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 34400078 is about 5865.1579688871. The cubic root of 34400078 is about 325.2269121465.

The spelling of 34400078 in words is "thirty-four million, four hundred thousand, seventy-eight".