415400449 has 2 divisors, whose sum is σ = 415400450. Its totient is φ = 415400448.

The previous prime is 415400431. The next prime is 415400459. The reversal of 415400449 is 944004514.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 331494849 + 83905600 = 18207^2 + 9160^2 .

It is a cyclic number.

It is not a de Polignac number, because 415400449 - 2⁹ = 415399937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 415400449.

It is not a weakly prime, because it can be changed into another prime (415400459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207700224 + 207700225.

It is an arithmetic number, because the mean of its divisors is an integer number (207700225).

Almost surely, 2^415400449 is an apocalyptic number.

It is an amenable number.

415400449 is a deficient number, since it is larger than the sum of its proper divisors (1).

415400449 is an equidigital number, since it uses as much as digits as its factorization.

415400449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 415400449 is about 20381.3750517476. The cubic root of 415400449 is about 746.1434322075.

The spelling of 415400449 in words is "four hundred fifteen million, four hundred thousand, four hundred forty-nine".