1542340 has 24 divisors (see below), whose sum is σ = 3290112. Its totient is φ = 607200.

The previous prime is 1542283. The next prime is 1542347. The reversal of 1542340 is 432451.

It is not an unprimeable number, because it can be changed into a prime (1542347) 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, 765 + ... + 1915.

It is an arithmetic number, because the mean of its divisors is an integer number (137088).

2^1542340 is an apocalyptic number.

1542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542340 is an abundant number, since it is smaller than the sum of its proper divisors (1747772).

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

1542340 is a wasteful number, since it uses less digits than its factorization.

1542340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1225 counting only the distinct ones).

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

The square root of 1542340 is about 1241.9098195924. The cubic root of 1542340 is about 115.5384953173.

Adding to 1542340 its reverse (432451), we get a palindrome (1974791).

The spelling of 1542340 in words is "one million, five hundred forty-two thousand, three hundred forty".