20392801 has 8 divisors (see below), whose sum is σ = 23958144. Its totient is φ = 17112720.

The previous prime is 20392781. The next prime is 20392807. The reversal of 20392801 is 10829302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20392801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20392807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71161 + ... + 71446.

It is an arithmetic number, because the mean of its divisors is an integer number (2994768).

Almost surely, 2^20392801 is an apocalyptic number.

It is an amenable number.

20392801 is a deficient number, since it is larger than the sum of its proper divisors (3565343).

20392801 is a wasteful number, since it uses less digits than its factorization.

20392801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142631.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 20392801 is about 4515.8389032382. The cubic root of 20392801 is about 273.2072964759.

The spelling of 20392801 in words is "twenty million, three hundred ninety-two thousand, eight hundred one".