20400301 has 2 divisors, whose sum is σ = 20400302. Its totient is φ = 20400300.

The previous prime is 20400277. The next prime is 20400307. The reversal of 20400301 is 10300402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17598025 + 2802276 = 4195^2 + 1674^2 .

It is a cyclic number.

It is not a de Polignac number, because 20400301 - 2⁵ = 20400269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20400307) 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 as a sum of consecutive naturals, namely, 10200150 + 10200151.

It is an arithmetic number, because the mean of its divisors is an integer number (10200151).

Almost surely, 2^20400301 is an apocalyptic number.

It is an amenable number.

20400301 is a deficient number, since it is larger than the sum of its proper divisors (1).

20400301 is an equidigital number, since it uses as much as digits as its factorization.

20400301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 20400301 is about 4516.6692373916. The cubic root of 20400301 is about 273.2407854766.

Adding to 20400301 its reverse (10300402), we get a palindrome (30700703).

The spelling of 20400301 in words is "twenty million, four hundred thousand, three hundred one".