20482357 has 4 divisors (see below), whose sum is σ = 23408416. Its totient is φ = 17556300.

The previous prime is 20482337. The next prime is 20482367. The reversal of 20482357 is 75328402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75328402 = 2 ⋅37664201.

It is a cyclic number.

It is not a de Polignac number, because 20482357 - 2¹⁹ = 19958069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20482307) 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 3 ways as a sum of consecutive naturals, for example, 1463019 + ... + 1463032.

It is an arithmetic number, because the mean of its divisors is an integer number (5852104).

Almost surely, 2^20482357 is an apocalyptic number.

It is an amenable number.

20482357 is a deficient number, since it is larger than the sum of its proper divisors (2926059).

20482357 is an equidigital number, since it uses as much as digits as its factorization.

20482357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2926058.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 20482357 is about 4525.7438062710. The cubic root of 20482357 is about 273.6066469336.

The spelling of 20482357 in words is "twenty million, four hundred eighty-two thousand, three hundred fifty-seven".