1540530369 has 12 divisors (see below), whose sum is σ = 2543097856. Its totient is φ = 880303032.

The previous prime is 1540530359. The next prime is 1540530371. The reversal of 1540530369 is 9630350451.

1540530369 is a `hidden beast` number, since 1 + 540 + 53 + 0 + 3 + 69 = 666.

It is not a de Polignac number, because 1540530369 - 2¹³ = 1540522177 is a prime.

It is a super-2 number, since 2×1540530369² = 4746467635622552322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540530349) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12226369 + ... + 12226494.

Almost surely, 2^1540530369 is an apocalyptic number.

It is an amenable number.

1540530369 is a deficient number, since it is larger than the sum of its proper divisors (1002567487).

1540530369 is a wasteful number, since it uses less digits than its factorization.

1540530369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24452876 (or 24452873 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 1540530369 is about 39249.5906857638. The cubic root of 1540530369 is about 1154.9329044062.

The spelling of 1540530369 in words is "one billion, five hundred forty million, five hundred thirty thousand, three hundred sixty-nine".