98366640 has 40 divisors (see below), whose sum is σ = 304937328. Its totient is φ = 26231040.

The previous prime is 98366621. The next prime is 98366651. The reversal of 98366640 is 4666389.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 98366592 and 98366601.

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, 204691 + ... + 205170.

Almost surely, 2^98366640 is an apocalyptic number.

It is an amenable number.

98366640 is an abundant number, since it is smaller than the sum of its proper divisors (206570688).

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

98366640 is a wasteful number, since it uses less digits than its factorization.

98366640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409877 (or 409871 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 98366640 is about 9917.9957652744. The cubic root of 98366640 is about 461.6178695849.

The spelling of 98366640 in words is "ninety-eight million, three hundred sixty-six thousand, six hundred forty".