1302040 has 32 divisors (see below), whose sum is σ = 3001680. Its totient is φ = 508032.

The previous prime is 1302029. The next prime is 1302043. The reversal of 1302040 is 402031.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1302043) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1342 + ... + 2098.

2^1302040 is an apocalyptic number.

1302040 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 1302040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500840).

1302040 is an abundant number, since it is smaller than the sum of its proper divisors (1699640).

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

1302040 is a wasteful number, since it uses less digits than its factorization.

1302040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 811 (or 807 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1302040 is about 1141.0696735958. The cubic root of 1302040 is about 109.1963467137.

Adding to 1302040 its reverse (402031), we get a palindrome (1704071).

Subtracting from 1302040 its reverse (402031), we obtain a palindrome (900009).

The spelling of 1302040 in words is "one million, three hundred two thousand, forty".