4990378 has 16 divisors (see below), whose sum is σ = 7812000. Its totient is φ = 2387952.

The previous prime is 4990357. The next prime is 4990393. The reversal of 4990378 is 8730994.

It is a self number, because there is not a number n which added to its sum of digits gives 4990378.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7753 + ... + 8371.

It is an arithmetic number, because the mean of its divisors is an integer number (488250).

Almost surely, 2^4990378 is an apocalyptic number.

4990378 is a deficient number, since it is larger than the sum of its proper divisors (2821622).

4990378 is a wasteful number, since it uses less digits than its factorization.

4990378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 4990378 is about 2233.9153967865. The cubic root of 4990378 is about 170.8878349733.

The spelling of 4990378 in words is "four million, nine hundred ninety thousand, three hundred seventy-eight".