20484670 has 8 divisors (see below), whose sum is σ = 36872424. Its totient is φ = 8193864.

The previous prime is 20484631. The next prime is 20484671. The reversal of 20484670 is 7648402.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20484671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1024224 + ... + 1024243.

It is an arithmetic number, because the mean of its divisors is an integer number (4609053).

Almost surely, 2^20484670 is an apocalyptic number.

20484670 is a deficient number, since it is larger than the sum of its proper divisors (16387754).

20484670 is a wasteful number, since it uses less digits than its factorization.

20484670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2048474.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20484670 is about 4525.9993371630. Note that the first 3 decimals coincide. The cubic root of 20484670 is about 273.6169456890.

The spelling of 20484670 in words is "twenty million, four hundred eighty-four thousand, six hundred seventy".