4991342 has 8 divisors (see below), whose sum is σ = 7496496. Its totient is φ = 2492512.

The previous prime is 4991339. The next prime is 4991347. The reversal of 4991342 is 2431994.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 4991299 and 4991308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991347) 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, 2303 + ... + 3909.

It is an arithmetic number, because the mean of its divisors is an integer number (937062).

Almost surely, 2^4991342 is an apocalyptic number.

4991342 is a deficient number, since it is larger than the sum of its proper divisors (2505154).

4991342 is a wasteful number, since it uses less digits than its factorization.

4991342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162.

The product of its digits is 7776, while the sum is 32.

The square root of 4991342 is about 2234.1311510294. The cubic root of 4991342 is about 170.8988378316.

The spelling of 4991342 in words is "four million, nine hundred ninety-one thousand, three hundred forty-two".