20453704 has 8 divisors (see below), whose sum is σ = 38350710. Its totient is φ = 10226848.

The previous prime is 20453701. The next prime is 20453717. The reversal of 20453704 is 40735402.

It can be written as a sum of positive squares in only one way, i.e., 12602500 + 7851204 = 3550^2 + 2802^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (20453701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278349 + ... + 1278364.

Almost surely, 2^20453704 is an apocalyptic number.

It is an amenable number.

20453704 is a deficient number, since it is larger than the sum of its proper divisors (17897006).

20453704 is a wasteful number, since it uses less digits than its factorization.

20453704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556719 (or 2556715 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20453704 is about 4522.5771414095. The cubic root of 20453704 is about 273.4790035874.

The spelling of 20453704 in words is "twenty million, four hundred fifty-three thousand, seven hundred four".