742454309 has 8 divisors (see below), whose sum is σ = 768417792. Its totient is φ = 716616720.

The previous prime is 742454303. The next prime is 742454341. The reversal of 742454309 is 903454247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 742454309 - 2²⁰ = 741405733 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 (742454303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19394 + ... + 43139.

It is an arithmetic number, because the mean of its divisors is an integer number (96052224).

Almost surely, 2^742454309 is an apocalyptic number.

It is an amenable number.

742454309 is a deficient number, since it is larger than the sum of its proper divisors (25963483).

742454309 is a wasteful number, since it uses less digits than its factorization.

742454309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62947.

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 742454309 is about 27248.0147717224. The cubic root of 742454309 is about 905.5030358680.

The spelling of 742454309 in words is "seven hundred forty-two million, four hundred fifty-four thousand, three hundred nine".