20028698 has 8 divisors (see below), whose sum is σ = 31624320. Its totient is φ = 9487260.

The previous prime is 20028691. The next prime is 20028707. The reversal of 20028698 is 89682002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×20028698² = 802297487150408, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20028691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263498 + ... + 263573.

It is an arithmetic number, because the mean of its divisors is an integer number (3953040).

Almost surely, 2^20028698 is an apocalyptic number.

20028698 is a deficient number, since it is larger than the sum of its proper divisors (11595622).

20028698 is a wasteful number, since it uses less digits than its factorization.

20028698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527092.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 20028698 is about 4475.3433387842. The cubic root of 20028698 is about 271.5715302056.

The spelling of 20028698 in words is "twenty million, twenty-eight thousand, six hundred ninety-eight".