1540303412 has 6 divisors (see below), whose sum is σ = 2695530978. Its totient is φ = 770151704.

The previous prime is 1540303393. The next prime is 1540303423. The reversal of 1540303412 is 2143030451.

It can be written as a sum of positive squares in only one way, i.e., 1524590116 + 15713296 = 39046^2 + 3964^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192537923 + ... + 192537930.

It is an arithmetic number, because the mean of its divisors is an integer number (449255163).

Almost surely, 2^1540303412 is an apocalyptic number.

It is an amenable number.

1540303412 is a deficient number, since it is larger than the sum of its proper divisors (1155227566).

1540303412 is a wasteful number, since it uses less digits than its factorization.

1540303412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385075857 (or 385075855 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1540303412 is about 39246.6993771451. The cubic root of 1540303412 is about 1154.8761851997.

Adding to 1540303412 its reverse (2143030451), we get a palindrome (3683333863).

The spelling of 1540303412 in words is "one billion, five hundred forty million, three hundred three thousand, four hundred twelve".