98220418 has 4 divisors (see below), whose sum is σ = 147330630. Its totient is φ = 49110208.

The previous prime is 98220389. The next prime is 98220439. The reversal of 98220418 is 81402289.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81402289 = 19 ⋅4284331.

It can be written as a sum of positive squares in only one way, i.e., 63728289 + 34492129 = 7983^2 + 5873^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24555103 + ... + 24555106.

Almost surely, 2^98220418 is an apocalyptic number.

98220418 is a deficient number, since it is larger than the sum of its proper divisors (49110212).

98220418 is a wasteful number, since it uses less digits than its factorization.

98220418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49110211.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 98220418 is about 9910.6214739541. The cubic root of 98220418 is about 461.3890245165.

The spelling of 98220418 in words is "ninety-eight million, two hundred twenty thousand, four hundred eighteen".