406725469 has 2 divisors, whose sum is σ = 406725470. Its totient is φ = 406725468.

The previous prime is 406725427. The next prime is 406725547. The reversal of 406725469 is 964527604.

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., 401481369 + 5244100 = 20037^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 406725469 - 2⁹ = 406724957 is a prime.

It is a super-2 number, since 2×406725469² = 330851214266539922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (406725269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203362734 + 203362735.

It is an arithmetic number, because the mean of its divisors is an integer number (203362735).

Almost surely, 2^406725469 is an apocalyptic number.

It is an amenable number.

406725469 is a deficient number, since it is larger than the sum of its proper divisors (1).

406725469 is an equidigital number, since it uses as much as digits as its factorization.

406725469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 362880, while the sum is 43.

The square root of 406725469 is about 20167.4358558544. The cubic root of 406725469 is about 740.9128429224.

The spelling of 406725469 in words is "four hundred six million, seven hundred twenty-five thousand, four hundred sixty-nine".