266272431 has 16 divisors (see below), whose sum is σ = 359748480. Its totient is φ = 175171680.

The previous prime is 266272397. The next prime is 266272439. The reversal of 266272431 is 134272662.

It is not a de Polignac number, because 266272431 - 2¹⁹ = 265748143 is a prime.

It is a super-2 number, since 2×266272431² = 141802015021299522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 266272392 and 266272401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266272439) 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 15 ways as a sum of consecutive naturals, for example, 70296 + ... + 73986.

It is an arithmetic number, because the mean of its divisors is an integer number (22484280).

Almost surely, 2^266272431 is an apocalyptic number.

266272431 is a deficient number, since it is larger than the sum of its proper divisors (93476049).

266272431 is a wasteful number, since it uses less digits than its factorization.

266272431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4006.

The product of its digits is 24192, while the sum is 33.

The square root of 266272431 is about 16317.8562011068. The cubic root of 266272431 is about 643.3422413388.

The spelling of 266272431 in words is "two hundred sixty-six million, two hundred seventy-two thousand, four hundred thirty-one".