266984628 has 24 divisors (see below), whose sum is σ = 636220032. Its totient is φ = 87101184.

The previous prime is 266984591. The next prime is 266984629. The reversal of 266984628 is 826489662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266984629) 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, 236125 + ... + 237252.

It is an arithmetic number, because the mean of its divisors is an integer number (26509168).

Almost surely, 2^266984628 is an apocalyptic number.

It is an amenable number.

266984628 is an abundant number, since it is smaller than the sum of its proper divisors (369235404).

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

266984628 is a wasteful number, since it uses less digits than its factorization.

266984628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473431 (or 473429 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 266984628 is about 16339.6642560366. The cubic root of 266984628 is about 643.9153117036.

The spelling of 266984628 in words is "two hundred sixty-six million, nine hundred eighty-four thousand, six hundred twenty-eight".