401342237 has 2 divisors, whose sum is σ = 401342238. Its totient is φ = 401342236.

The previous prime is 401342147. The next prime is 401342303. The reversal of 401342237 is 732243104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344882041 + 56460196 = 18571^2 + 7514^2 .

It is a cyclic number.

It is not a de Polignac number, because 401342237 - 2¹⁴ = 401325853 is a prime.

It is a super-2 number, since 2×401342237² = 322151182400328338, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401342537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200671118 + 200671119.

It is an arithmetic number, because the mean of its divisors is an integer number (200671119).

Almost surely, 2^401342237 is an apocalyptic number.

It is an amenable number.

401342237 is a deficient number, since it is larger than the sum of its proper divisors (1).

401342237 is an equidigital number, since it uses as much as digits as its factorization.

401342237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 26.

The square root of 401342237 is about 20033.5278221286. The cubic root of 401342237 is about 737.6295201805.

The spelling of 401342237 in words is "four hundred one million, three hundred forty-two thousand, two hundred thirty-seven".