1540873468 has 6 divisors (see below), whose sum is σ = 2696528576. Its totient is φ = 770436732.

The previous prime is 1540873423. The next prime is 1540873469. The reversal of 1540873468 is 8643780451.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540873469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192609180 + ... + 192609187.

Almost surely, 2^1540873468 is an apocalyptic number.

It is an amenable number.

1540873468 is a deficient number, since it is larger than the sum of its proper divisors (1155655108).

1540873468 is a wasteful number, since it uses less digits than its factorization.

1540873468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385218371 (or 385218369 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 1540873468 is about 39253.9611759119. The cubic root of 1540873468 is about 1155.0186382805.

The spelling of 1540873468 in words is "one billion, five hundred forty million, eight hundred seventy-three thousand, four hundred sixty-eight".