266431430 has 8 divisors (see below), whose sum is σ = 479576592. Its totient is φ = 106572568.

The previous prime is 266431423. The next prime is 266431441. The reversal of 266431430 is 34134662.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 266431393 and 266431402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13321562 + ... + 13321581.

It is an arithmetic number, because the mean of its divisors is an integer number (59947074).

Almost surely, 2^266431430 is an apocalyptic number.

266431430 is a deficient number, since it is larger than the sum of its proper divisors (213145162).

266431430 is a wasteful number, since it uses less digits than its factorization.

266431430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26643150.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 266431430 is about 16322.7274069011. The cubic root of 266431430 is about 643.4702686366.

The spelling of 266431430 in words is "two hundred sixty-six million, four hundred thirty-one thousand, four hundred thirty".