8998442 has 4 divisors (see below), whose sum is σ = 13497666. Its totient is φ = 4499220.

The previous prime is 8998433. The next prime is 8998447. The reversal of 8998442 is 2448998.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 7458361 + 1540081 = 2731^2 + 1241^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 8998393 and 8998402.

It is not an unprimeable number, because it can be changed into a prime (8998447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2249609 + ... + 2249612.

Almost surely, 2^8998442 is an apocalyptic number.

8998442 is a deficient number, since it is larger than the sum of its proper divisors (4499224).

8998442 is a wasteful number, since it uses less digits than its factorization.

8998442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499223.

The product of its digits is 165888, while the sum is 44.

The square root of 8998442 is about 2999.7403220946. The cubic root of 8998442 is about 207.9963787585.

The spelling of 8998442 in words is "eight million, nine hundred ninety-eight thousand, four hundred forty-two".