4990390 has 8 divisors (see below), whose sum is σ = 8982720. Its totient is φ = 1996152.

The previous prime is 4990357. The next prime is 4990393. The reversal of 4990390 is 930994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4990393) 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 3 ways as a sum of consecutive naturals, for example, 249510 + ... + 249529.

It is an arithmetic number, because the mean of its divisors is an integer number (1122840).

Almost surely, 2^4990390 is an apocalyptic number.

4990390 is a deficient number, since it is larger than the sum of its proper divisors (3992330).

4990390 is a wasteful number, since it uses less digits than its factorization.

4990390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499046.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 4990390 is about 2233.9180826521. The cubic root of 4990390 is about 170.8879719470.

The spelling of 4990390 in words is "four million, nine hundred ninety thousand, three hundred ninety".