2020400237 has 2 divisors, whose sum is σ = 2020400238. Its totient is φ = 2020400236.

The previous prime is 2020400197. The next prime is 2020400243. The reversal of 2020400237 is 7320040202.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212362761 + 808037476 = 34819^2 + 28426^2 .

It is a cyclic number.

It is not a de Polignac number, because 2020400237 - 2⁸ = 2020399981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2020400287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010200118 + 1010200119.

It is an arithmetic number, because the mean of its divisors is an integer number (1010200119).

Almost surely, 2^2020400237 is an apocalyptic number.

It is an amenable number.

2020400237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020400237 is an equidigital number, since it uses as much as digits as its factorization.

2020400237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2020400237 is about 44948.8624661403. The cubic root of 2020400237 is about 1264.1903481847.

Adding to 2020400237 its reverse (7320040202), we get a palindrome (9340440439).

The spelling of 2020400237 in words is "two billion, twenty million, four hundred thousand, two hundred thirty-seven".