20489202 has 48 divisors (see below), whose sum is σ = 46545408. Its totient is φ = 6505920.

The previous prime is 20489191. The next prime is 20489221. The reversal of 20489202 is 20298402.

It is a super-3 number, since 3×20489202³ (a number of 23 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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 23 ways as a sum of consecutive naturals, for example, 40483 + ... + 40985.

It is an arithmetic number, because the mean of its divisors is an integer number (969696).

Almost surely, 2^20489202 is an apocalyptic number.

It is a pronic number, being equal to 4526×4527.

It is a practical number, because each smaller number is the sum of distinct divisors of 20489202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23272704).

20489202 is an abundant number, since it is smaller than the sum of its proper divisors (26056206).

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

20489202 is a wasteful number, since it uses less digits than its factorization.

20489202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615 (or 612 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20489202 is about 4526.4999723848. The cubic root of 20489202 is about 273.6371224124.

The spelling of 20489202 in words is "twenty million, four hundred eighty-nine thousand, two hundred two".