20699152 has 20 divisors (see below), whose sum is σ = 40265280. Its totient is φ = 10308128.

The previous prime is 20699143. The next prime is 20699197. The reversal of 20699152 is 25199602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1749 + ... + 6667.

It is an arithmetic number, because the mean of its divisors is an integer number (2013264).

Almost surely, 2^20699152 is an apocalyptic number.

It is an amenable number.

20699152 is a deficient number, since it is larger than the sum of its proper divisors (19566128).

20699152 is a wasteful number, since it uses less digits than its factorization.

20699152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5190 (or 5184 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 20699152 is about 4549.6320730362. The cubic root of 20699152 is about 274.5685885829.

The spelling of 20699152 in words is "twenty million, six hundred ninety-nine thousand, one hundred fifty-two".