266440492 has 6 divisors (see below), whose sum is σ = 466270868. Its totient is φ = 133220244.

The previous prime is 266440481. The next prime is 266440501. The reversal of 266440492 is 294044662.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33305058 + ... + 33305065.

Almost surely, 2^266440492 is an apocalyptic number.

It is an amenable number.

266440492 is a deficient number, since it is larger than the sum of its proper divisors (199830376).

266440492 is a wasteful number, since it uses less digits than its factorization.

266440492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66610127 (or 66610125 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 37.

The square root of 266440492 is about 16323.0049929540. The cubic root of 266440492 is about 643.4775638989.

The spelling of 266440492 in words is "two hundred sixty-six million, four hundred forty thousand, four hundred ninety-two".