1616540324 has 24 divisors (see below), whose sum is σ = 3277373568. Its totient is φ = 683311680.

The previous prime is 1616540309. The next prime is 1616540327. The reversal of 1616540324 is 4230456161.

It is a super-2 number, since 2×1616540324² = 5226405238236049952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1616540327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393392 + ... + 397479.

It is an arithmetic number, because the mean of its divisors is an integer number (136557232).

Almost surely, 2^1616540324 is an apocalyptic number.

1616540324 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1616540324 is an abundant number, since it is smaller than the sum of its proper divisors (1660833244).

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

1616540324 is a wasteful number, since it uses less digits than its factorization.

1616540324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790955 (or 790953 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1616540324 is about 40206.2224537446. Note that the first 3 decimals coincide. The cubic root of 1616540324 is about 1173.6236363794.

Adding to 1616540324 its reverse (4230456161), we get a palindrome (5846996485).

The spelling of 1616540324 in words is "one billion, six hundred sixteen million, five hundred forty thousand, three hundred twenty-four".