20463704 has 8 divisors (see below), whose sum is σ = 38369460. Its totient is φ = 10231848.

The previous prime is 20463683. The next prime is 20463739. The reversal of 20463704 is 40736402.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278974 + ... + 1278989.

Almost surely, 2^20463704 is an apocalyptic number.

It is an amenable number.

20463704 is a deficient number, since it is larger than the sum of its proper divisors (17905756).

20463704 is a wasteful number, since it uses less digits than its factorization.

20463704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557969 (or 2557965 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 20463704 is about 4523.6825706497. The cubic root of 20463704 is about 273.5235651082.

The spelling of 20463704 in words is "twenty million, four hundred sixty-three thousand, seven hundred four".