266930244 has 81 divisors (see below), whose sum is σ = 786924957. Its totient is φ = 76069728.

The previous prime is 266930227. The next prime is 266930263. The reversal of 266930244 is 442039662.

The square root of 266930244 is 16338.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 63011844 + 203918400 = 7938^2 + 14280^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 266930199 and 266930208.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 686002 + ... + 686390.

Almost surely, 2^266930244 is an apocalyptic number.

266930244 is the 16338-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266930244

266930244 is an abundant number, since it is smaller than the sum of its proper divisors (519994713).

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

266930244 is a wasteful number, since it uses less digits than its factorization.

266930244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The cubic root of 266930244 is about 643.8715875030.

Multiplying 266930244 by its sum of digits (36), we get a square (9609488784 = 98028²).

266930244 divided by its sum of digits (36) gives a square (7414729 = 2723²).

The spelling of 266930244 in words is "two hundred sixty-six million, nine hundred thirty thousand, two hundred forty-four".