981667266 has 48 divisors (see below), whose sum is σ = 2062707264. Its totient is φ = 311364000.

The previous prime is 981667259. The next prime is 981667283. The reversal of 981667266 is 662766189.

It is a super-2 number, since 2×981667266² = 1927341242271829512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 350331 + ... + 353121.

It is an arithmetic number, because the mean of its divisors is an integer number (42973068).

Almost surely, 2^981667266 is an apocalyptic number.

981667266 is an abundant number, since it is smaller than the sum of its proper divisors (1081039998).

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

981667266 is a wasteful number, since it uses less digits than its factorization.

981667266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2888 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 51.

The square root of 981667266 is about 31331.5697978892. The cubic root of 981667266 is about 993.8513603822.

The spelling of 981667266 in words is "nine hundred eighty-one million, six hundred sixty-seven thousand, two hundred sixty-six".