266742476 has 144 divisors (see below), whose sum is σ = 660667392. Its totient is φ = 92534400.

The previous prime is 266742457. The next prime is 266742517. The reversal of 266742476 is 674247662.

It is a super-2 number, since 2×266742476² = 142303097005221152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 868715 + ... + 869021.

It is an arithmetic number, because the mean of its divisors is an integer number (4587968).

Almost surely, 2^266742476 is an apocalyptic number.

266742476 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266742476, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330333696).

266742476 is an abundant number, since it is smaller than the sum of its proper divisors (393924916).

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

266742476 is a wasteful number, since it uses less digits than its factorization.

266742476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380 (or 371 counting only the distinct ones).

The product of its digits is 677376, while the sum is 44.

The square root of 266742476 is about 16332.2526309141. The cubic root of 266742476 is about 643.7205782136.

The spelling of 266742476 in words is "two hundred sixty-six million, seven hundred forty-two thousand, four hundred seventy-six".