40226237 has 2 divisors, whose sum is σ = 40226238. Its totient is φ = 40226236.

The previous prime is 40226231. The next prime is 40226239. The reversal of 40226237 is 73262204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40208281 + 17956 = 6341^2 + 134^2 .

It is a cyclic number.

It is not a de Polignac number, because 40226237 - 2¹² = 40222141 is a prime.

Together with 40226239, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40226231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20113118 + 20113119.

It is an arithmetic number, because the mean of its divisors is an integer number (20113119).

Almost surely, 2^40226237 is an apocalyptic number.

It is an amenable number.

40226237 is a deficient number, since it is larger than the sum of its proper divisors (1).

40226237 is an equidigital number, since it uses as much as digits as its factorization.

40226237 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 40226237 is about 6342.4157069684. The cubic root of 40226237 is about 342.6387439376.

The spelling of 40226237 in words is "forty million, two hundred twenty-six thousand, two hundred thirty-seven".