266460380 has 24 divisors (see below), whose sum is σ = 592483248. Its totient is φ = 100314368.

The previous prime is 266460367. The next prime is 266460449. The reversal of 266460380 is 83064662.

It is a super-2 number, since 2×266460380² = 142002268219488800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 266460380.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391514 + ... + 392193.

It is an arithmetic number, because the mean of its divisors is an integer number (24686802).

Almost surely, 2^266460380 is an apocalyptic number.

266460380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266460380 is an abundant number, since it is smaller than the sum of its proper divisors (326022868).

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

266460380 is a wasteful number, since it uses less digits than its factorization.

266460380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783733 (or 783731 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 35.

The square root of 266460380 is about 16323.6141831397. The cubic root of 266460380 is about 643.4935739321.

The spelling of 266460380 in words is "two hundred sixty-six million, four hundred sixty thousand, three hundred eighty".