1340032 has 48 divisors (see below), whose sum is σ = 2914650. Its totient is φ = 612864.

The previous prime is 1340021. The next prime is 1340033. The reversal of 1340032 is 2300431.

It can be written as a sum of positive squares in only one way, i.e., 1132096 + 207936 = 1064^2 + 456^2 .

It is a super-2 number, since 2×1340032² = 3591371522048, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1339994 and 1340021.

It is not an unprimeable number, because it can be changed into a prime (1340033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46194 + ... + 46222.

2^1340032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1340032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1457325).

1340032 is an abundant number, since it is smaller than the sum of its proper divisors (1574618).

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

1340032 is an equidigital number, since it uses as much as digits as its factorization.

1340032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1340032 is about 1157.5975120913. The cubic root of 1340032 is about 110.2482547290.

Adding to 1340032 its reverse (2300431), we get a palindrome (3640463).

The spelling of 1340032 in words is "one million, three hundred forty thousand, thirty-two".