266546442 has 8 divisors (see below), whose sum is σ = 533092896. Its totient is φ = 88848812.

The previous prime is 266546437. The next prime is 266546461. The reversal of 266546442 is 244645662.

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

266546442 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 266546442.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22212198 + ... + 22212209.

It is an arithmetic number, because the mean of its divisors is an integer number (66636612).

Almost surely, 2^266546442 is an apocalyptic number.

266546442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

266546442 is a wasteful number, since it uses less digits than its factorization.

266546442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44424412.

The product of its digits is 276480, while the sum is 39.

The square root of 266546442 is about 16326.2500899625. The cubic root of 266546442 is about 643.5628454973.

The spelling of 266546442 in words is "two hundred sixty-six million, five hundred forty-six thousand, four hundred forty-two".