266248632 has 64 divisors (see below), whose sum is σ = 723492000. Its totient is φ = 81160704.

The previous prime is 266248603. The next prime is 266248639. The reversal of 266248632 is 236842662.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266248639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30094 + ... + 37922.

Almost surely, 2^266248632 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266248632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361746000).

266248632 is an abundant number, since it is smaller than the sum of its proper divisors (457243368).

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

266248632 is a wasteful number, since it uses less digits than its factorization.

266248632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7960 (or 7956 counting only the distinct ones).

The product of its digits is 165888, while the sum is 39.

The square root of 266248632 is about 16317.1269529902. The cubic root of 266248632 is about 643.3230738041.

The spelling of 266248632 in words is "two hundred sixty-six million, two hundred forty-eight thousand, six hundred thirty-two".