40222537 has 2 divisors, whose sum is σ = 40222538. Its totient is φ = 40222536.

The previous prime is 40222529. The next prime is 40222541. The reversal of 40222537 is 73522204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32764176 + 7458361 = 5724^2 + 2731^2 .

It is a cyclic number.

It is not a de Polignac number, because 40222537 - 2³ = 40222529 is a prime.

It is not a weakly prime, because it can be changed into another prime (40222577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20111268 + 20111269.

It is an arithmetic number, because the mean of its divisors is an integer number (20111269).

Almost surely, 2^40222537 is an apocalyptic number.

It is an amenable number.

40222537 is a deficient number, since it is larger than the sum of its proper divisors (1).

40222537 is an equidigital number, since it uses as much as digits as its factorization.

40222537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 40222537 is about 6342.1240132940. The cubic root of 40222537 is about 342.6282383379.

The spelling of 40222537 in words is "forty million, two hundred twenty-two thousand, five hundred thirty-seven".