20524934 has 4 divisors (see below), whose sum is σ = 30787404. Its totient is φ = 10262466.

The previous prime is 20524927. The next prime is 20524937. The reversal of 20524934 is 43942502.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20524897 and 20524906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524937) by changing a digit.

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 as a sum of consecutive naturals, namely, 5131232 + ... + 5131235.

It is an arithmetic number, because the mean of its divisors is an integer number (7696851).

Almost surely, 2^20524934 is an apocalyptic number.

20524934 is a deficient number, since it is larger than the sum of its proper divisors (10262470).

20524934 is a wasteful number, since it uses less digits than its factorization.

20524934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262469.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 20524934 is about 4530.4452319833. The cubic root of 20524934 is about 273.7960992123.

The spelling of 20524934 in words is "twenty million, five hundred twenty-four thousand, nine hundred thirty-four".