1340048 has 20 divisors (see below), whose sum is σ = 2640828. Its totient is φ = 658560.

The previous prime is 1340047. The next prime is 1340069. The reversal of 1340048 is 8400431.

It can be written as a sum of positive squares in 2 ways, for example, as 719104 + 620944 = 848^2 + 788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290 + ... + 1662.

2^1340048 is an apocalyptic number.

It is an amenable number.

1340048 is a deficient number, since it is larger than the sum of its proper divisors (1300780).

1340048 is a wasteful number, since it uses less digits than its factorization.

1340048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1340048 is about 1157.6044229356. The cubic root of 1340048 is about 110.2486935158.

Adding to 1340048 its reverse (8400431), we get a palindrome (9740479).

The spelling of 1340048 in words is "one million, three hundred forty thousand, forty-eight".