266366988 has 48 divisors (see below), whose sum is σ = 691578720. Its totient is φ = 88660800.

The previous prime is 266366953. The next prime is 266367019. The reversal of 266366988 is 889663662.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a zygodrome in base 2.

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, 100318 + ... + 102938.

It is an arithmetic number, because the mean of its divisors is an integer number (14407890).

Almost surely, 2^266366988 is an apocalyptic number.

It is an amenable number.

266366988 is an abundant number, since it is smaller than the sum of its proper divisors (425211732).

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

266366988 is a wasteful number, since it uses less digits than its factorization.

266366988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3575 (or 3567 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 54.

The square root of 266366988 is about 16320.7532914385. The cubic root of 266366988 is about 643.4183855503.

The spelling of 266366988 in words is "two hundred sixty-six million, three hundred sixty-six thousand, nine hundred eighty-eight".