4398738 has 8 divisors (see below), whose sum is σ = 8797488. Its totient is φ = 1466244.

The previous prime is 4398731. The next prime is 4398743. The reversal of 4398738 is 8378934.

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

4398738 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 4398738.

It is not an unprimeable number, because it can be changed into a prime (4398731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366556 + ... + 366567.

It is an arithmetic number, because the mean of its divisors is an integer number (1099686).

Almost surely, 2^4398738 is an apocalyptic number.

4398738 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

4398738 is a wasteful number, since it uses less digits than its factorization.

4398738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733128.

The product of its digits is 145152, while the sum is 42.

The square root of 4398738 is about 2097.3168573203. The cubic root of 4398738 is about 163.8485862063.

The spelling of 4398738 in words is "four million, three hundred ninety-eight thousand, seven hundred thirty-eight".