742411309 has 4 divisors (see below), whose sum is σ = 742781404. Its totient is φ = 742041216.

The previous prime is 742411303. The next prime is 742411321. The reversal of 742411309 is 903114247.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 697118409 + 45292900 = 26403^2 + 6730^2 .

It is a cyclic number.

It is not a de Polignac number, because 742411309 - 2⁹ = 742410797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (742411303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182022 + ... + 186055.

It is an arithmetic number, because the mean of its divisors is an integer number (185695351).

Almost surely, 2^742411309 is an apocalyptic number.

It is an amenable number.

742411309 is a deficient number, since it is larger than the sum of its proper divisors (370095).

742411309 is a wasteful number, since it uses less digits than its factorization.

742411309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370094.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 742411309 is about 27247.2257119876. The cubic root of 742411309 is about 905.4855544859.

The spelling of 742411309 in words is "seven hundred forty-two million, four hundred eleven thousand, three hundred nine".