266432406 has 32 divisors (see below), whose sum is σ = 539911680. Its totient is φ = 87643296.

The previous prime is 266432389. The next prime is 266432479. The reversal of 266432406 is 604234662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200115 + ... + 201441.

It is an arithmetic number, because the mean of its divisors is an integer number (16872240).

Almost surely, 2^266432406 is an apocalyptic number.

266432406 is an abundant number, since it is smaller than the sum of its proper divisors (273479274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

266432406 is a wasteful number, since it uses less digits than its factorization.

266432406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748.

The product of its (nonzero) digits is 41472, while the sum is 33.

The square root of 266432406 is about 16322.7573038381. The cubic root of 266432406 is about 643.4710543625.

The spelling of 266432406 in words is "two hundred sixty-six million, four hundred thirty-two thousand, four hundred six".