20484734 has 8 divisors (see below), whose sum is σ = 30748080. Its totient is φ = 10235376.

The previous prime is 20484733. The next prime is 20484767. The reversal of 20484734 is 43748402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20484734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20484731) 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 3 ways as a sum of consecutive naturals, for example, 1727 + ... + 6629.

It is an arithmetic number, because the mean of its divisors is an integer number (3843510).

Almost surely, 2^20484734 is an apocalyptic number.

20484734 is a deficient number, since it is larger than the sum of its proper divisors (10263346).

20484734 is a wasteful number, since it uses less digits than its factorization.

20484734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6994.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 20484734 is about 4526.0064074192. The cubic root of 20484734 is about 273.6172306414.

The spelling of 20484734 in words is "twenty million, four hundred eighty-four thousand, seven hundred thirty-four".