266450620 has 12 divisors (see below), whose sum is σ = 559546344. Its totient is φ = 106580240.

The previous prime is 266450617. The next prime is 266450641. The reversal of 266450620 is 26054662.

It is a congruent number.

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, 6661246 + ... + 6661285.

It is an arithmetic number, because the mean of its divisors is an integer number (46628862).

Almost surely, 2^266450620 is an apocalyptic number.

266450620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266450620 is an abundant number, since it is smaller than the sum of its proper divisors (293095724).

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

266450620 is a wasteful number, since it uses less digits than its factorization.

266450620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13322540 (or 13322538 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 266450620 is about 16323.3152269997. The cubic root of 266450620 is about 643.4857171368.

The spelling of 266450620 in words is "two hundred sixty-six million, four hundred fifty thousand, six hundred twenty".