4398742 has 4 divisors (see below), whose sum is σ = 6598116. Its totient is φ = 2199370.

The previous prime is 4398731. The next prime is 4398743. The reversal of 4398742 is 2478934.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4398743) 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 as a sum of consecutive naturals, namely, 1099684 + ... + 1099687.

It is an arithmetic number, because the mean of its divisors is an integer number (1649529).

Almost surely, 2^4398742 is an apocalyptic number.

4398742 is a deficient number, since it is larger than the sum of its proper divisors (2199374).

4398742 is a wasteful number, since it uses less digits than its factorization.

4398742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2199373.

The product of its digits is 48384, while the sum is 37.

The square root of 4398742 is about 2097.3178109195. The cubic root of 4398742 is about 163.8486358716.

The spelling of 4398742 in words is "four million, three hundred ninety-eight thousand, seven hundred forty-two".