60400409 has 2 divisors, whose sum is σ = 60400410. Its totient is φ = 60400408.

The previous prime is 60400399. The next prime is 60400441. The reversal of 60400409 is 90400406.

60400409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60016009 + 384400 = 7747^2 + 620^2 .

It is a cyclic number.

It is not a de Polignac number, because 60400409 - 2²⁰ = 59351833 is a prime.

It is not a weakly prime, because it can be changed into another prime (60400709) 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, 30200204 + 30200205.

It is an arithmetic number, because the mean of its divisors is an integer number (30200205).

Almost surely, 2^60400409 is an apocalyptic number.

It is an amenable number.

60400409 is a deficient number, since it is larger than the sum of its proper divisors (1).

60400409 is an equidigital number, since it uses as much as digits as its factorization.

60400409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 60400409 is about 7771.7700043169. The cubic root of 60400409 is about 392.3556941757.

The spelling of 60400409 in words is "sixty million, four hundred thousand, four hundred nine".