409972232269 has 4 divisors (see below), whose sum is σ = 409975662780. Its totient is φ = 409968801760.

The previous prime is 409972232207. The next prime is 409972232281. The reversal of 409972232269 is 962232279904.

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 153139168900 + 256833063369 = 391330^2 + 506787^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409972232269 is a prime.

It is a super-2 number, since 2×409972232269² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (409972232569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1529272 + ... + 1777249.

It is an arithmetic number, because the mean of its divisors is an integer number (102493915695).

Almost surely, 2^409972232269 is an apocalyptic number.

It is an amenable number.

409972232269 is a deficient number, since it is larger than the sum of its proper divisors (3430511).

409972232269 is a wasteful number, since it uses less digits than its factorization.

409972232269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3430510.

The product of its (nonzero) digits is 5878656, while the sum is 55.

The spelling of 409972232269 in words is "four hundred nine billion, nine hundred seventy-two million, two hundred thirty-two thousand, two hundred sixty-nine".