40626149 has 2 divisors, whose sum is σ = 40626150. Its totient is φ = 40626148.

The previous prime is 40626133. The next prime is 40626167. The reversal of 40626149 is 94162604.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23668225 + 16957924 = 4865^2 + 4118^2 .

It is a cyclic number.

It is not a de Polignac number, because 40626149 - 2⁴ = 40626133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40626169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20313074 + 20313075.

It is an arithmetic number, because the mean of its divisors is an integer number (20313075).

Almost surely, 2^40626149 is an apocalyptic number.

It is an amenable number.

40626149 is a deficient number, since it is larger than the sum of its proper divisors (1).

40626149 is an equidigital number, since it uses as much as digits as its factorization.

40626149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 40626149 is about 6373.8645263294. The cubic root of 40626149 is about 343.7704576695.

The spelling of 40626149 in words is "forty million, six hundred twenty-six thousand, one hundred forty-nine".