4378922 has 4 divisors (see below), whose sum is σ = 6568386. Its totient is φ = 2189460.

The previous prime is 4378909. The next prime is 4378939. The reversal of 4378922 is 2298734.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2686321 + 1692601 = 1639^2 + 1301^2 .

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094729 + ... + 1094732.

Almost surely, 2^4378922 is an apocalyptic number.

4378922 is a deficient number, since it is larger than the sum of its proper divisors (2189464).

4378922 is a wasteful number, since it uses less digits than its factorization.

4378922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189463.

The product of its digits is 24192, while the sum is 35.

The square root of 4378922 is about 2092.5873936350. The cubic root of 4378922 is about 163.6021737585.

The spelling of 4378922 in words is "four million, three hundred seventy-eight thousand, nine hundred twenty-two".