266213406 has 16 divisors (see below), whose sum is σ = 532800000. Its totient is φ = 88675608.

The previous prime is 266213401. The next prime is 266213411. The reversal of 266213406 is 604312662.

It is an interprime number because it is at equal distance from previous prime (266213401) and next prime (266213411).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266213401) 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, 5806 + ... + 23793.

It is an arithmetic number, because the mean of its divisors is an integer number (33300000).

Almost surely, 2^266213406 is an apocalyptic number.

266213406 is an abundant number, since it is smaller than the sum of its proper divisors (266586594).

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

266213406 is a wasteful number, since it uses less digits than its factorization.

266213406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31103.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 266213406 is about 16316.0474993180. The cubic root of 266213406 is about 643.2947009533.

The spelling of 266213406 in words is "two hundred sixty-six million, two hundred thirteen thousand, four hundred six".