266428750 has 40 divisors (see below), whose sum is σ = 570754800. Its totient is φ = 91344000.

The previous prime is 266428733. The next prime is 266428751. The reversal of 266428750 is 57824662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266428751) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6475 + ... + 23974.

It is an arithmetic number, because the mean of its divisors is an integer number (14268870).

Almost surely, 2^266428750 is an apocalyptic number.

266428750 is an abundant number, since it is smaller than the sum of its proper divisors (304326050).

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

266428750 is an equidigital number, since it uses as much as digits as its factorization.

266428750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30478 (or 30463 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 266428750 is about 16322.6453125711. The cubic root of 266428750 is about 643.4681111008.

The spelling of 266428750 in words is "two hundred sixty-six million, four hundred twenty-eight thousand, seven hundred fifty".