34478890 has 16 divisors (see below), whose sum is σ = 65713032. Its totient is φ = 12980224.

The previous prime is 34478879. The next prime is 34478891. The reversal of 34478890 is 9887443.

It can be written as a sum of positive squares in 4 ways, for example, as 29713401 + 4765489 = 5451^2 + 2183^2 .

It is not an unprimeable number, because it can be changed into a prime (34478891) 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 7 ways as a sum of consecutive naturals, for example, 101239 + ... + 101578.

Almost surely, 2^34478890 is an apocalyptic number.

34478890 is a deficient number, since it is larger than the sum of its proper divisors (31234142).

34478890 is a wasteful number, since it uses less digits than its factorization.

34478890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202841.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 34478890 is about 5871.8727847255. The cubic root of 34478890 is about 325.4750921437.

The spelling of 34478890 in words is "thirty-four million, four hundred seventy-eight thousand, eight hundred ninety".