20492273 has 2 divisors, whose sum is σ = 20492274. Its totient is φ = 20492272.

The previous prime is 20492267. The next prime is 20492321. The reversal of 20492273 is 37229402.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17909824 + 2582449 = 4232^2 + 1607^2 .

It is a cyclic number.

It is not a de Polignac number, because 20492273 - 2⁴ = 20492257 is a prime.

It is not a weakly prime, because it can be changed into another prime (20492243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10246136 + 10246137.

It is an arithmetic number, because the mean of its divisors is an integer number (10246137).

Almost surely, 2^20492273 is an apocalyptic number.

It is an amenable number.

20492273 is a deficient number, since it is larger than the sum of its proper divisors (1).

20492273 is an equidigital number, since it uses as much as digits as its factorization.

20492273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20492273 is about 4526.8391842432. The cubic root of 20492273 is about 273.6507929891.

The spelling of 20492273 in words is "twenty million, four hundred ninety-two thousand, two hundred seventy-three".