1342404009 has 10 divisors (see below), whose sum is σ = 2005319690. Its totient is φ = 894935952.

The previous prime is 1342403987. The next prime is 1342404013. The reversal of 1342404009 is 9004042431.

1342404009 is a `hidden beast` number, since 13 + 4 + 240 + 400 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1339779609 + 2624400 = 36603^2 + 1620^2 .

It is not a de Polignac number, because 1342404009 - 2²¹ = 1340306857 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342404209) 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 in 9 ways as a sum of consecutive naturals, for example, 8286364 + ... + 8286525.

It is an arithmetic number, because the mean of its divisors is an integer number (200531969).

Almost surely, 2^1342404009 is an apocalyptic number.

It is an amenable number.

1342404009 is a deficient number, since it is larger than the sum of its proper divisors (662915681).

1342404009 is an equidigital number, since it uses as much as digits as its factorization.

1342404009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16572901 (or 16572892 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1342404009 is about 36638.8319819287. The cubic root of 1342404009 is about 1103.1326703306.

The spelling of 1342404009 in words is "one billion, three hundred forty-two million, four hundred four thousand, nine".