4490778 has 8 divisors (see below), whose sum is σ = 8981568. Its totient is φ = 1496924.

The previous prime is 4490777. The next prime is 4490779. The reversal of 4490778 is 8770944.

It is an interprime number because it is at equal distance from previous prime (4490777) and next prime (4490779).

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

4490778 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4490777) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374226 + ... + 374237.

It is an arithmetic number, because the mean of its divisors is an integer number (1122696).

Almost surely, 2^4490778 is an apocalyptic number.

4490778 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4490778 is a wasteful number, since it uses less digits than its factorization.

4490778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748468.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 4490778 is about 2119.1455825403. The cubic root of 4490778 is about 164.9835061566.

The spelling of 4490778 in words is "four million, four hundred ninety thousand, seven hundred seventy-eight".