1275480 has 64 divisors (see below), whose sum is σ = 4255200. Its totient is φ = 339840.

The previous prime is 1275467. The next prime is 1275499. The reversal of 1275480 is 845721.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 490 + ... + 1670.

2^1275480 is an apocalyptic number.

1275480 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 1275480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127600).

1275480 is an abundant number, since it is smaller than the sum of its proper divisors (2979720).

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

1275480 is a wasteful number, since it uses less digits than its factorization.

1275480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201 (or 1191 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 1275480 is about 1129.3715066354. The cubic root of 1275480 is about 108.4487501028.

The spelling of 1275480 in words is "one million, two hundred seventy-five thousand, four hundred eighty".