1043540368 has 20 divisors (see below), whose sum is σ = 2177387548. Its totient is φ = 481633920.

The previous prime is 1043540357. The next prime is 1043540369. The reversal of 1043540368 is 8630453401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244234384 + 799305984 = 15628^2 + 28272^2 .

It is not an unprimeable number, because it can be changed into a prime (1043540369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2508303 + ... + 2508718.

Almost surely, 2^1043540368 is an apocalyptic number.

It is an amenable number.

1043540368 is an abundant number, since it is smaller than the sum of its proper divisors (1133847180).

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

1043540368 is a wasteful number, since it uses less digits than its factorization.

1043540368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5017042 (or 5017036 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 1043540368 is about 32303.8754331427. The cubic root of 1043540368 is about 1014.3077674653.

Adding to 1043540368 its reverse (8630453401), we get a palindrome (9673993769).

The spelling of 1043540368 in words is "one billion, forty-three million, five hundred forty thousand, three hundred sixty-eight".