4531998 has 8 divisors (see below), whose sum is σ = 9064008. Its totient is φ = 1510664.

The previous prime is 4531991. The next prime is 4531999. The reversal of 4531998 is 8991354.

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

4531998 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4531991) 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, 377661 + ... + 377672.

It is an arithmetic number, because the mean of its divisors is an integer number (1133001).

Almost surely, 2^4531998 is an apocalyptic number.

4531998 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.

4531998 is a wasteful number, since it uses less digits than its factorization.

4531998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755338.

The product of its digits is 38880, while the sum is 39.

The square root of 4531998 is about 2128.8489847803. The cubic root of 4531998 is about 165.4867536548.

The spelling of 4531998 in words is "four million, five hundred thirty-one thousand, nine hundred ninety-eight".