266238472 has 16 divisors (see below), whose sum is σ = 499381740. Its totient is φ = 133070016.

The previous prime is 266238463. The next prime is 266238481. The reversal of 266238472 is 274832662.

It is an interprime number because it is at equal distance from previous prime (266238463) and next prime (266238481).

It can be written as a sum of positive squares in 2 ways, for example, as 265885636 + 352836 = 16306^2 + 594^2 .

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, 27958 + ... + 36250.

Almost surely, 2^266238472 is an apocalyptic number.

It is an amenable number.

266238472 is a deficient number, since it is larger than the sum of its proper divisors (233143268).

266238472 is a wasteful number, since it uses less digits than its factorization.

266238472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12312 (or 12308 counting only the distinct ones).

The product of its digits is 193536, while the sum is 40.

The square root of 266238472 is about 16316.8156207025. The cubic root of 266238472 is about 643.3148906690.

The spelling of 266238472 in words is "two hundred sixty-six million, two hundred thirty-eight thousand, four hundred seventy-two".