20483445 has 8 divisors (see below), whose sum is σ = 32773536. Its totient is φ = 10924496.

The previous prime is 20483423. The next prime is 20483461. The reversal of 20483445 is 54438402.

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

It is a cyclic number.

It is not a de Polignac number, because 20483445 - 2⁶ = 20483381 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 682767 + ... + 682796.

It is an arithmetic number, because the mean of its divisors is an integer number (4096692).

Almost surely, 2^20483445 is an apocalyptic number.

It is an amenable number.

20483445 is a deficient number, since it is larger than the sum of its proper divisors (12290091).

20483445 is a wasteful number, since it uses less digits than its factorization.

20483445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365571.

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 20483445 is about 4525.8640059109. The cubic root of 20483445 is about 273.6114914080.

The spelling of 20483445 in words is "twenty million, four hundred eighty-three thousand, four hundred forty-five".