266464442 has 8 divisors (see below), whose sum is σ = 399867732. Its totient is φ = 133175200.

The previous prime is 266464403. The next prime is 266464463. The reversal of 266464442 is 244464662.

It can be written as a sum of positive squares in 2 ways, for example, as 266375041 + 89401 = 16321^2 + 299^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 266464396 and 266464405.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22409 + ... + 32172.

Almost surely, 2^266464442 is an apocalyptic number.

266464442 is a deficient number, since it is larger than the sum of its proper divisors (133403290).

266464442 is a wasteful number, since it uses less digits than its factorization.

266464442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57024.

The product of its digits is 221184, while the sum is 38.

The square root of 266464442 is about 16323.7386036410. The cubic root of 266464442 is about 643.4968437836.

The spelling of 266464442 in words is "two hundred sixty-six million, four hundred sixty-four thousand, four hundred forty-two".