407907449 has 2 divisors, whose sum is σ = 407907450. Its totient is φ = 407907448.

The previous prime is 407907439. The next prime is 407907463. The reversal of 407907449 is 944709704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 334633849 + 73273600 = 18293^2 + 8560^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-407907449 is a prime.

It is a super-4 number, since 4×407907449⁴ (a number of 36 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (407907439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203953724 + 203953725.

It is an arithmetic number, because the mean of its divisors is an integer number (203953725).

Almost surely, 2^407907449 is an apocalyptic number.

It is an amenable number.

407907449 is a deficient number, since it is larger than the sum of its proper divisors (1).

407907449 is an equidigital number, since it uses as much as digits as its factorization.

407907449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 44.

The square root of 407907449 is about 20196.7187681564. The cubic root of 407907449 is about 741.6298680953.

The spelling of 407907449 in words is "four hundred seven million, nine hundred seven thousand, four hundred forty-nine".