1340542 has 12 divisors (see below), whose sum is σ = 2339280. Its totient is φ = 574476.

The previous prime is 1340527. The next prime is 1340557. The reversal of 1340542 is 2450431.

It is an interprime number because it is at equal distance from previous prime (1340527) and next prime (1340557).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6742 + ... + 6937.

It is an arithmetic number, because the mean of its divisors is an integer number (194940).

2^1340542 is an apocalyptic number.

1340542 is a deficient number, since it is larger than the sum of its proper divisors (998738).

1340542 is a wasteful number, since it uses less digits than its factorization.

1340542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13695 (or 13688 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1340542 is about 1157.8177749542. The cubic root of 1340542 is about 110.2622393400.

Adding to 1340542 its reverse (2450431), we get a palindrome (3790973).

The spelling of 1340542 in words is "one million, three hundred forty thousand, five hundred forty-two".