4380878 has 4 divisors (see below), whose sum is σ = 6571320. Its totient is φ = 2190438.

The previous prime is 4380853. The next prime is 4380881. The reversal of 4380878 is 8780834.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8780834 = 2 ⋅4390417.

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 as a sum of consecutive naturals, namely, 1095218 + ... + 1095221.

It is an arithmetic number, because the mean of its divisors is an integer number (1642830).

Almost surely, 2^4380878 is an apocalyptic number.

4380878 is a deficient number, since it is larger than the sum of its proper divisors (2190442).

4380878 is a wasteful number, since it uses less digits than its factorization.

4380878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2190441.

The product of its (nonzero) digits is 43008, while the sum is 38.

The square root of 4380878 is about 2093.0547054485. The cubic root of 4380878 is about 163.6265296934.

The spelling of 4380878 in words is "four million, three hundred eighty thousand, eight hundred seventy-eight".