20852398 has 32 divisors (see below), whose sum is σ = 38522880. Its totient is φ = 8268480.

The previous prime is 20852393. The next prime is 20852407. The reversal of 20852398 is 89325802.

20852398 is an esthetic number in base 9, because in such base its adjacent digits differ by 1.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20852393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8938 + ... + 11026.

It is an arithmetic number, because the mean of its divisors is an integer number (1203840).

Almost surely, 2^20852398 is an apocalyptic number.

20852398 is a deficient number, since it is larger than the sum of its proper divisors (17670482).

20852398 is a wasteful number, since it uses less digits than its factorization.

20852398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 20852398 is about 4566.4425979092. The cubic root of 20852398 is about 275.2445120081.

The spelling of 20852398 in words is "twenty million, eight hundred fifty-two thousand, three hundred ninety-eight".