401001204437 has 2 divisors, whose sum is σ = 401001204438. Its totient is φ = 401001204436.

The previous prime is 401001204391. The next prime is 401001204451. The reversal of 401001204437 is 734402100104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394938090481 + 6063113956 = 628441^2 + 77866^2 .

It is a cyclic number.

It is not a de Polignac number, because 401001204437 - 2²⁰ = 401000155861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401001204337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200500602218 + 200500602219.

It is an arithmetic number, because the mean of its divisors is an integer number (200500602219).

Almost surely, 2^401001204437 is an apocalyptic number.

It is an amenable number.

401001204437 is a deficient number, since it is larger than the sum of its proper divisors (1).

401001204437 is an equidigital number, since it uses as much as digits as its factorization.

401001204437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

The spelling of 401001204437 in words is "four hundred one billion, one million, two hundred four thousand, four hundred thirty-seven".