741309409 has 4 divisors (see below), whose sum is σ = 741462016. Its totient is φ = 741156804.

The previous prime is 741309403. The next prime is 741309473. The reversal of 741309409 is 904903147.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 904903147 = 1511 ⋅598877.

It is a cyclic number.

It is not a de Polignac number, because 741309409 - 2¹³ = 741301217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (741309403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68769 + ... + 78814.

It is an arithmetic number, because the mean of its divisors is an integer number (185365504).

Almost surely, 2^741309409 is an apocalyptic number.

It is an amenable number.

741309409 is a deficient number, since it is larger than the sum of its proper divisors (152607).

741309409 is a wasteful number, since it uses less digits than its factorization.

741309409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152606.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 741309409 is about 27226.9977963050. The cubic root of 741309409 is about 905.0373534433.

The spelling of 741309409 in words is "seven hundred forty-one million, three hundred nine thousand, four hundred nine".