2401407509 has 2 divisors, whose sum is σ = 2401407510. Its totient is φ = 2401407508.

The previous prime is 2401407499. The next prime is 2401407647. The reversal of 2401407509 is 9057041042.

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., 1493590609 + 907816900 = 38647^2 + 30130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2401407509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2401407809) 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, 1200703754 + 1200703755.

It is an arithmetic number, because the mean of its divisors is an integer number (1200703755).

Almost surely, 2^2401407509 is an apocalyptic number.

It is an amenable number.

2401407509 is a deficient number, since it is larger than the sum of its proper divisors (1).

2401407509 is an equidigital number, since it uses as much as digits as its factorization.

2401407509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 2401407509 is about 49004.1580786774. The cubic root of 2401407509 is about 1339.1275803775.

The spelling of 2401407509 in words is "two billion, four hundred one million, four hundred seven thousand, five hundred nine".