998244026 has 16 divisors (see below), whose sum is σ = 1618833384. Its totient is φ = 458932224.

The previous prime is 998244001. The next prime is 998244041. The reversal of 998244026 is 620442899.

It is a happy number.

It is a Cunningham number, because it is equal to 31595²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 998244025 + 1 = 31595^2 + 1^2 .

It is a super-2 number, since 2×998244026² = 1992982270889377352, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68015 + ... + 81378.

Almost surely, 2^998244026 is an apocalyptic number.

998244026 is a deficient number, since it is larger than the sum of its proper divisors (620589358).

998244026 is a wasteful number, since it uses less digits than its factorization.

998244026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149665.

The product of its (nonzero) digits is 248832, while the sum is 44.

The square root of 998244026 is about 31595.0000158253. Note that the first 4 decimals coincide. The cubic root of 998244026 is about 999.4143323938.

The spelling of 998244026 in words is "nine hundred ninety-eight million, two hundred forty-four thousand, twenty-six".