20047232 has 16 divisors (see below), whose sum is σ = 39938100. Its totient is φ = 10023552.

The previous prime is 20047201. The next prime is 20047241. The reversal of 20047232 is 23274002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

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, 78182 + ... + 78437.

Almost surely, 2^20047232 is an apocalyptic number.

It is an amenable number.

20047232 is a deficient number, since it is larger than the sum of its proper divisors (19890868).

20047232 is an equidigital number, since it uses as much as digits as its factorization.

20047232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156633 (or 156621 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 20047232 is about 4477.4135390870. The cubic root of 20047232 is about 271.6552726265.

The spelling of 20047232 in words is "twenty million, forty-seven thousand, two hundred thirty-two".