20454735 has 32 divisors (see below), whose sum is σ = 39375360. Its totient is φ = 8857728.

The previous prime is 20454691. The next prime is 20454739. The reversal of 20454735 is 53745402.

It is not a de Polignac number, because 20454735 - 2⁶ = 20454671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454739) 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 in 31 ways as a sum of consecutive naturals, for example, 3132 + ... + 7121.

It is an arithmetic number, because the mean of its divisors is an integer number (1230480).

Almost surely, 2^20454735 is an apocalyptic number.

20454735 is a deficient number, since it is larger than the sum of its proper divisors (18920625).

20454735 is a wasteful number, since it uses less digits than its factorization.

20454735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10287.

The product of its (nonzero) digits is 16800, while the sum is 30.

The square root of 20454735 is about 4522.6911236564. The cubic root of 20454735 is about 273.4835985517.

The spelling of 20454735 in words is "twenty million, four hundred fifty-four thousand, seven hundred thirty-five".