20353012 has 24 divisors (see below), whose sum is σ = 39017160. Its totient is φ = 9246720.

The previous prime is 20352991. The next prime is 20353027. The reversal of 20353012 is 21035302.

It can be written as a sum of positive squares in 4 ways, for example, as 6170256 + 14182756 = 2484^2 + 3766^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189 + ... + 7132.

It is an arithmetic number, because the mean of its divisors is an integer number (1625715).

Almost surely, 2^20353012 is an apocalyptic number.

It is an amenable number.

20353012 is a deficient number, since it is larger than the sum of its proper divisors (18664148).

20353012 is a wasteful number, since it uses less digits than its factorization.

20353012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10371 (or 10369 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20353012 is about 4511.4312584811. The cubic root of 20353012 is about 273.0294931618.

Adding to 20353012 its reverse (21035302), we get a palindrome (41388314).

The spelling of 20353012 in words is "twenty million, three hundred fifty-three thousand, twelve".