20601892 has 12 divisors (see below), whose sum is σ = 38174220. Its totient is φ = 9694976.

The previous prime is 20601883. The next prime is 20601901. The reversal of 20601892 is 29810602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20601883) and next prime (20601901).

It can be written as a sum of positive squares in 2 ways, for example, as 6584356 + 14017536 = 2566^2 + 3744^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20601892.

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, 151417 + ... + 151552.

It is an arithmetic number, because the mean of its divisors is an integer number (3181185).

Almost surely, 2^20601892 is an apocalyptic number.

It is an amenable number.

20601892 is a deficient number, since it is larger than the sum of its proper divisors (17572328).

20601892 is a wasteful number, since it uses less digits than its factorization.

20601892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302990 (or 302988 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20601892 is about 4538.9307110816. The cubic root of 20601892 is about 274.1378708353.

The spelling of 20601892 in words is "twenty million, six hundred one thousand, eight hundred ninety-two".