4494492 has 18 divisors (see below), whose sum is σ = 11361168. Its totient is φ = 1498152.

The previous prime is 4494491. The next prime is 4494509. The reversal of 4494492 is 2944944.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 124847 = 4494492 / (4 + 4 + 9 + 4 + 4 + 9 + 2).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4494491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62388 + ... + 62459.

It is an arithmetic number, because the mean of its divisors is an integer number (631176).

Almost surely, 2^4494492 is an apocalyptic number.

It is an amenable number.

4494492 is an abundant number, since it is smaller than the sum of its proper divisors (6866676).

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

4494492 is a wasteful number, since it uses less digits than its factorization.

4494492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124857 (or 124852 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 4494492 is about 2120.0216980022. The cubic root of 4494492 is about 165.0289756275.

It can be divided in two parts, 449449 and 2, that multiplied together give a palindrome (898898).

The spelling of 4494492 in words is "four million, four hundred ninety-four thousand, four hundred ninety-two".