454239309 has 16 divisors (see below), whose sum is σ = 618933312. Its totient is φ = 296220288.

The previous prime is 454239307. The next prime is 454239347. The reversal of 454239309 is 903932454.

It is not a de Polignac number, because 454239309 - 2¹ = 454239307 is a prime.

It is a super-3 number, since 3×454239309³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454239301) 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 15 ways as a sum of consecutive naturals, for example, 51057 + ... + 59289.

It is an arithmetic number, because the mean of its divisors is an integer number (38683332).

Almost surely, 2^454239309 is an apocalyptic number.

It is an amenable number.

454239309 is a deficient number, since it is larger than the sum of its proper divisors (164694003).

454239309 is a wasteful number, since it uses less digits than its factorization.

454239309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8636.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 454239309 is about 21312.8906767712. The cubic root of 454239309 is about 768.7083021074.

The spelling of 454239309 in words is "four hundred fifty-four million, two hundred thirty-nine thousand, three hundred nine".