1280600 has 48 divisors (see below), whose sum is σ = 3143400. Its totient is φ = 483840.

The previous prime is 1280597. The next prime is 1280603. The reversal of 1280600 is 60821.

It is an interprime number because it is at equal distance from previous prime (1280597) and next prime (1280603).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3632 + ... + 3968.

2^1280600 is an apocalyptic number.

1280600 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 1280600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571700).

1280600 is an abundant number, since it is smaller than the sum of its proper divisors (1862800).

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

1280600 is a wasteful number, since it uses less digits than its factorization.

1280600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1280600 is about 1131.6359838747. The cubic root of 1280600 is about 108.5936671238.

The spelling of 1280600 in words is "one million, two hundred eighty thousand, six hundred".