1302240 has 48 divisors (see below), whose sum is σ = 4103568. Its totient is φ = 347136.

The previous prime is 1302239. The next prime is 1302253. The reversal of 1302240 is 422031.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 877 + ... + 1836.

It is an arithmetic number, because the mean of its divisors is an integer number (85491).

2^1302240 is an apocalyptic number.

1302240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1302240 is an abundant number, since it is smaller than the sum of its proper divisors (2801328).

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

1302240 is a wasteful number, since it uses less digits than its factorization.

1302240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2731 (or 2723 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1302240 is about 1141.1573072982. The cubic root of 1302240 is about 109.2019374665.

Adding to 1302240 its reverse (422031), we get a palindrome (1724271).

The spelling of 1302240 in words is "one million, three hundred two thousand, two hundred forty".