266630998 has 8 divisors (see below), whose sum is σ = 400033008. Its totient is φ = 133286664.

The previous prime is 266630993. The next prime is 266631041. The reversal of 266630998 is 899036662.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266630993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40 + ... + 23092.

It is an arithmetic number, because the mean of its divisors is an integer number (50004126).

Almost surely, 2^266630998 is an apocalyptic number.

266630998 is a deficient number, since it is larger than the sum of its proper divisors (133402010).

266630998 is a wasteful number, since it uses less digits than its factorization.

266630998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28838.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 266630998 is about 16328.8394566179. The cubic root of 266630998 is about 643.6308903583.

The spelling of 266630998 in words is "two hundred sixty-six million, six hundred thirty thousand, nine hundred ninety-eight".