266313400 has 24 divisors (see below), whose sum is σ = 619179120. Its totient is φ = 106525280.

The previous prime is 266313391. The next prime is 266313413. The reversal of 266313400 is 4313662.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 665584 + ... + 665983.

It is an arithmetic number, because the mean of its divisors is an integer number (25799130).

Almost surely, 2^266313400 is an apocalyptic number.

266313400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

266313400 is an abundant number, since it is smaller than the sum of its proper divisors (352865720).

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

266313400 is a wasteful number, since it uses less digits than its factorization.

266313400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331583 (or 1331574 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 266313400 is about 16319.1114954216. Note that the first 3 decimals coincide. The cubic root of 266313400 is about 643.3752347865.

The spelling of 266313400 in words is "two hundred sixty-six million, three hundred thirteen thousand, four hundred".