1542115340 has 12 divisors (see below), whose sum is σ = 3238442256. Its totient is φ = 616846128.

The previous prime is 1542115327. The next prime is 1542115357. The reversal of 1542115340 is 435112451.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38552864 + ... + 38552903.

It is an arithmetic number, because the mean of its divisors is an integer number (269870188).

Almost surely, 2^1542115340 is an apocalyptic number.

1542115340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1542115340 is an abundant number, since it is smaller than the sum of its proper divisors (1696326916).

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

1542115340 is a wasteful number, since it uses less digits than its factorization.

1542115340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77105776 (or 77105774 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1542115340 is about 39269.7764190223. The cubic root of 1542115340 is about 1155.3288519697.

Adding to 1542115340 its reverse (435112451), we get a palindrome (1977227791).

The spelling of 1542115340 in words is "one billion, five hundred forty-two million, one hundred fifteen thousand, three hundred forty".