1342540 has 24 divisors (see below), whose sum is σ = 2968560. Its totient is φ = 508608.

The previous prime is 1342531. The next prime is 1342547. The reversal of 1342540 is 452431.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (1342547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1387 + ... + 2146.

It is an arithmetic number, because the mean of its divisors is an integer number (123690).

2^1342540 is an apocalyptic number.

1342540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342540 is an abundant number, since it is smaller than the sum of its proper divisors (1626020).

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

1342540 is a wasteful number, since it uses less digits than its factorization.

1342540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3561 (or 3559 counting only the distinct ones).

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

The square root of 1342540 is about 1158.6802837712. The cubic root of 1342540 is about 110.3169919685.

Adding to 1342540 its reverse (452431), we get a palindrome (1794971).

The spelling of 1342540 in words is "one million, three hundred forty-two thousand, five hundred forty".