4990146 has 64 divisors (see below), whose sum is σ = 12545280. Its totient is φ = 1290240.

The previous prime is 4990133. The next prime is 4990157. The reversal of 4990146 is 6410994.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20586 + ... + 20826.

It is an arithmetic number, because the mean of its divisors is an integer number (196020).

Almost surely, 2^4990146 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4990146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6272640).

4990146 is an abundant number, since it is smaller than the sum of its proper divisors (7555134).

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

4990146 is a wasteful number, since it uses less digits than its factorization.

4990146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 4990146 is about 2233.8634694179. The cubic root of 4990146 is about 170.8851867709.

The spelling of 4990146 in words is "four million, nine hundred ninety thousand, one hundred forty-six".