34478390 has 16 divisors (see below), whose sum is σ = 64201680. Its totient is φ = 13315680.

The previous prime is 34478387. The next prime is 34478429. The reversal of 34478390 is 9387443.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 59156 + ... + 59735.

It is an arithmetic number, because the mean of its divisors is an integer number (4012605).

Almost surely, 2^34478390 is an apocalyptic number.

34478390 is a deficient number, since it is larger than the sum of its proper divisors (29723290).

34478390 is a wasteful number, since it uses less digits than its factorization.

34478390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118927.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 34478390 is about 5871.8302087169. The cubic root of 34478390 is about 325.4735188300.

The spelling of 34478390 in words is "thirty-four million, four hundred seventy-eight thousand, three hundred ninety".