98199640 has 64 divisors (see below), whose sum is σ = 275477760. Its totient is φ = 30606720.

The previous prime is 98199631. The next prime is 98199653. The reversal of 98199640 is 4699189.

It is a super-2 number, since 2×98199640² = 19286338592259200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12862 + ... + 19021.

It is an arithmetic number, because the mean of its divisors is an integer number (4304340).

Almost surely, 2^98199640 is an apocalyptic number.

It is an amenable number.

98199640 is an abundant number, since it is smaller than the sum of its proper divisors (177278120).

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

98199640 is a wasteful number, since it uses less digits than its factorization.

98199640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31912 (or 31908 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 98199640 is about 9909.5731492330. The cubic root of 98199640 is about 461.3564874350.

The spelling of 98199640 in words is "ninety-eight million, one hundred ninety-nine thousand, six hundred forty".