1427760 has 80 divisors (see below), whose sum is σ = 4925280. Its totient is φ = 380160.

The previous prime is 1427753. The next prime is 1427773. The reversal of 1427760 is 677241.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1830 + ... + 2490.

It is an arithmetic number, because the mean of its divisors is an integer number (61566).

2^1427760 is an apocalyptic number.

1427760 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 1427760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2462640).

1427760 is an abundant number, since it is smaller than the sum of its proper divisors (3497520).

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

1427760 is a wasteful number, since it uses less digits than its factorization.

1427760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 671 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 1427760 is about 1194.8891161945. The cubic root of 1427760 is about 112.6034603793.

It can be divided in two parts, 1427 and 760, that added together give a 7-th power (2187 = 3⁷).

The spelling of 1427760 in words is "one million, four hundred twenty-seven thousand, seven hundred sixty".