20530862 has 8 divisors (see below), whose sum is σ = 33595992. Its totient is φ = 9332200.

The previous prime is 20530841. The next prime is 20530871. The reversal of 20530862 is 26803502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 466589 + ... + 466632.

It is an arithmetic number, because the mean of its divisors is an integer number (4199499).

Almost surely, 2^20530862 is an apocalyptic number.

20530862 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20530862 is a deficient number, since it is larger than the sum of its proper divisors (13065130).

20530862 is a wasteful number, since it uses less digits than its factorization.

20530862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933234.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20530862 is about 4531.0994250844. The cubic root of 20530862 is about 273.8224558873.

The spelling of 20530862 in words is "twenty million, five hundred thirty thousand, eight hundred sixty-two".