4492988 has 6 divisors (see below), whose sum is σ = 7862736. Its totient is φ = 2246492.

The previous prime is 4492927. The next prime is 4492997. The reversal of 4492988 is 8892944.

It is a happy number.

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, 561620 + ... + 561627.

It is an arithmetic number, because the mean of its divisors is an integer number (1310456).

Almost surely, 2^4492988 is an apocalyptic number.

It is an amenable number.

4492988 is a deficient number, since it is larger than the sum of its proper divisors (3369748).

4492988 is a wasteful number, since it uses less digits than its factorization.

4492988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123251 (or 1123249 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 4492988 is about 2119.6669549719. Note that the first 3 decimals coincide. The cubic root of 4492988 is about 165.0105655922.

Subtracting from 4492988 its sum of digits (44), we obtain a palindrome (4492944).

The spelling of 4492988 in words is "four million, four hundred ninety-two thousand, nine hundred eighty-eight".