20489301 has 48 divisors (see below), whose sum is σ = 37428480. Its totient is φ = 11007360.

The previous prime is 20489281. The next prime is 20489303. The reversal of 20489301 is 10398402.

It is not a de Polignac number, because 20489301 - 2⁵ = 20489269 is a prime.

It is a super-2 number, since 2×20489301² = 839622910937202, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20489303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22036 + ... + 22946.

It is an arithmetic number, because the mean of its divisors is an integer number (779760).

Almost surely, 2^20489301 is an apocalyptic number.

20489301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20489301 is a deficient number, since it is larger than the sum of its proper divisors (16939179).

20489301 is a wasteful number, since it uses less digits than its factorization.

20489301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20489301 is about 4526.5109079732. The cubic root of 20489301 is about 273.6375631329.

The spelling of 20489301 in words is "twenty million, four hundred eighty-nine thousand, three hundred one".