266142372 has 12 divisors (see below), whose sum is σ = 620998896. Its totient is φ = 88714120.

The previous prime is 266142323. The next prime is 266142377. The reversal of 266142372 is 273241662.

266142372 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (266142377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11089254 + ... + 11089277.

It is an arithmetic number, because the mean of its divisors is an integer number (51749908).

Almost surely, 2^266142372 is an apocalyptic number.

It is an amenable number.

266142372 is an abundant number, since it is smaller than the sum of its proper divisors (354856524).

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

266142372 is a wasteful number, since it uses less digits than its factorization.

266142372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22178538 (or 22178536 counting only the distinct ones).

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

The square root of 266142372 is about 16313.8705401263. The cubic root of 266142372 is about 643.2374788654.

The spelling of 266142372 in words is "two hundred sixty-six million, one hundred forty-two thousand, three hundred seventy-two".