406427149 has 2 divisors, whose sum is σ = 406427150. Its totient is φ = 406427148.

The previous prime is 406427117. The next prime is 406427171. The reversal of 406427149 is 941724604.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 406304649 + 122500 = 20157^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 406427149 - 2⁵ = 406427117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406437149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203213574 + 203213575.

It is an arithmetic number, because the mean of its divisors is an integer number (203213575).

Almost surely, 2^406427149 is an apocalyptic number.

It is an amenable number.

406427149 is a deficient number, since it is larger than the sum of its proper divisors (1).

406427149 is an equidigital number, since it uses as much as digits as its factorization.

406427149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 406427149 is about 20160.0384176221. The cubic root of 406427149 is about 740.7316533998.

It can be divided in two parts, 4064 and 27149, that added together give a palindrome (31213).

The spelling of 406427149 in words is "four hundred six million, four hundred twenty-seven thousand, one hundred forty-nine".