407856049 has 2 divisors, whose sum is σ = 407856050. Its totient is φ = 407856048.

The previous prime is 407856019. The next prime is 407856089. The reversal of 407856049 is 940658704.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 387893025 + 19963024 = 19695^2 + 4468^2 .

It is a cyclic number.

It is not a de Polignac number, because 407856049 - 2⁵ = 407856017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 407855996 and 407856014.

It is not a weakly prime, because it can be changed into another prime (407856019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203928024 + 203928025.

It is an arithmetic number, because the mean of its divisors is an integer number (203928025).

Almost surely, 2^407856049 is an apocalyptic number.

It is an amenable number.

407856049 is a deficient number, since it is larger than the sum of its proper divisors (1).

407856049 is an equidigital number, since it uses as much as digits as its factorization.

407856049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 407856049 is about 20195.4462441413. The cubic root of 407856049 is about 741.5987161133.

The spelling of 407856049 in words is "four hundred seven million, eight hundred fifty-six thousand, forty-nine".