40022149 has 2 divisors, whose sum is σ = 40022150. Its totient is φ = 40022148.

The previous prime is 40022137. The next prime is 40022153. The reversal of 40022149 is 94122004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34928100 + 5094049 = 5910^2 + 2257^2 .

It is a cyclic number.

It is not a de Polignac number, because 40022149 - 2¹³ = 40013957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011074 + 20011075.

It is an arithmetic number, because the mean of its divisors is an integer number (20011075).

Almost surely, 2^40022149 is an apocalyptic number.

It is an amenable number.

40022149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40022149 is an equidigital number, since it uses as much as digits as its factorization.

40022149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 40022149 is about 6326.3061102036. The cubic root of 40022149 is about 342.0583014499.

The spelling of 40022149 in words is "forty million, twenty-two thousand, one hundred forty-nine".