1540432120 has 16 divisors (see below), whose sum is σ = 3465972360. Its totient is φ = 616172832.

The previous prime is 1540432093. The next prime is 1540432133. The reversal of 1540432120 is 212340451.

It is a super-2 number, since 2×1540432120² = 4745862232655388800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1540432091 and 1540432100.

It is a congruent number.

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, 19255362 + ... + 19255441.

Almost surely, 2^1540432120 is an apocalyptic number.

1540432120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1540432120 is an abundant number, since it is smaller than the sum of its proper divisors (1925540240).

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

1540432120 is a wasteful number, since it uses less digits than its factorization.

1540432120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38510814 (or 38510810 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1540432120 is about 39248.3390731379. The cubic root of 1540432120 is about 1154.9083515168.

Adding to 1540432120 its reverse (212340451), we get a palindrome (1752772571).

It can be divided in two parts, 15404 and 32120, that added together give a square (47524 = 218²).

The spelling of 1540432120 in words is "one billion, five hundred forty million, four hundred thirty-two thousand, one hundred twenty".