266428460 has 24 divisors (see below), whose sum is σ = 562857120. Its totient is φ = 105931904.

The previous prime is 266428451. The next prime is 266428489. The reversal of 266428460 is 64824662.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36545 + ... + 43224.

It is an arithmetic number, because the mean of its divisors is an integer number (23452380).

Almost surely, 2^266428460 is an apocalyptic number.

266428460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266428460 is an abundant number, since it is smaller than the sum of its proper divisors (296428660).

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

266428460 is a wasteful number, since it uses less digits than its factorization.

266428460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79945 (or 79943 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 266428460 is about 16322.6364292047. The cubic root of 266428460 is about 643.4678776352.

The spelling of 266428460 in words is "two hundred sixty-six million, four hundred twenty-eight thousand, four hundred sixty".