20416698 has 40 divisors (see below), whose sum is σ = 46055988. Its totient is φ = 6759936.

The previous prime is 20416679. The next prime is 20416703. The reversal of 20416698 is 89661402.

It can be written as a sum of positive squares in 2 ways, for example, as 18896409 + 1520289 = 4347^2 + 1233^2 .

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 19 ways as a sum of consecutive naturals, for example, 30940 + ... + 31592.

Almost surely, 2^20416698 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20416698, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23027994).

20416698 is an abundant number, since it is smaller than the sum of its proper divisors (25639290).

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

20416698 is a wasteful number, since it uses less digits than its factorization.

20416698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860 (or 851 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 20416698 is about 4518.4840378162. The cubic root of 20416698 is about 273.3139727843.

The spelling of 20416698 in words is "twenty million, four hundred sixteen thousand, six hundred ninety-eight".