20530898 has 16 divisors (see below), whose sum is σ = 31968000. Its totient is φ = 9877392.

The previous prime is 20530891. The next prime is 20530901. The reversal of 20530898 is 89803502.

It is not an unprimeable number, because it can be changed into a prime (20530891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27413 + ... + 28151.

It is an arithmetic number, because the mean of its divisors is an integer number (1998000).

Almost surely, 2^20530898 is an apocalyptic number.

20530898 is a deficient number, since it is larger than the sum of its proper divisors (11437102).

20530898 is a wasteful number, since it uses less digits than its factorization.

20530898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 20530898 is about 4531.1033976284. The cubic root of 20530898 is about 273.8226159326.

The spelling of 20530898 in words is "twenty million, five hundred thirty thousand, eight hundred ninety-eight".