1266900 has 72 divisors (see below), whose sum is σ = 3791424. Its totient is φ = 326400.

The previous prime is 1266899. The next prime is 1266913. The reversal of 1266900 is 96621.

It is a super-2 number, since 2×1266900² = 3210071220000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12249 + ... + 12351.

2^1266900 is an apocalyptic number.

1266900 is a gapful number since it is divisible by the number (10) 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 1266900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895712).

1266900 is an abundant number, since it is smaller than the sum of its proper divisors (2524524).

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

1266900 is a wasteful number, since it uses less digits than its factorization.

1266900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1266900 is about 1125.5665240225. The cubic root of 1266900 is about 108.2050289049.

The spelling of 1266900 in words is "one million, two hundred sixty-six thousand, nine hundred".