405469243 has 8 divisors (see below), whose sum is σ = 418783616. Its totient is φ = 392169600.

The previous prime is 405469241. The next prime is 405469283. The reversal of 405469243 is 342964504.

It is a happy number.

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 405469243 - 2¹ = 405469241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405469241) 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, 92755 + ... + 97027.

It is an arithmetic number, because the mean of its divisors is an integer number (52347952).

Almost surely, 2^405469243 is an apocalyptic number.

405469243 is a deficient number, since it is larger than the sum of its proper divisors (13314373).

405469243 is a wasteful number, since it uses less digits than its factorization.

405469243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7365.

The product of its (nonzero) digits is 103680, while the sum is 37.

The square root of 405469243 is about 20136.2668585813. The cubic root of 405469243 is about 740.1492534348.

The spelling of 405469243 in words is "four hundred five million, four hundred sixty-nine thousand, two hundred forty-three".