20349632 has 14 divisors (see below), whose sum is σ = 40381428. Its totient is φ = 10174784.

The previous prime is 20349613. The next prime is 20349643. The reversal of 20349632 is 23694302.

It is a junction number, because it is equal to n+sod(n) for n = 20349595 and 20349604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158918 + ... + 159045.

Almost surely, 2^20349632 is an apocalyptic number.

It is an amenable number.

20349632 is a deficient number, since it is larger than the sum of its proper divisors (20031796).

20349632 is an equidigital number, since it uses as much as digits as its factorization.

20349632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317975 (or 317965 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 20349632 is about 4511.0566389705. The cubic root of 20349632 is about 273.0143784329.

The spelling of 20349632 in words is "twenty million, three hundred forty-nine thousand, six hundred thirty-two".