20246529 has 16 divisors (see below), whose sum is σ = 27574272. Its totient is φ = 13211088.

The previous prime is 20246491. The next prime is 20246539. The reversal of 20246529 is 92564202.

It is not a de Polignac number, because 20246529 - 2¹² = 20242433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20246496 and 20246505.

It is not an unprimeable number, because it can be changed into a prime (20246539) 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, 52672 + ... + 53054.

It is an arithmetic number, because the mean of its divisors is an integer number (1723392).

Almost surely, 2^20246529 is an apocalyptic number.

It is an amenable number.

20246529 is a deficient number, since it is larger than the sum of its proper divisors (7327743).

20246529 is a wasteful number, since it uses less digits than its factorization.

20246529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 20246529 is about 4499.6143168054. The cubic root of 20246529 is about 272.5525146384.

The spelling of 20246529 in words is "twenty million, two hundred forty-six thousand, five hundred twenty-nine".