16530464 has 48 divisors (see below), whose sum is σ = 34473600. Its totient is φ = 7789824.

The previous prime is 16530463. The next prime is 16530487. The reversal of 16530464 is 46403561.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (16530463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43427 + ... + 43805.

It is an arithmetic number, because the mean of its divisors is an integer number (718200).

Almost surely, 2^16530464 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16530464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17236800).

16530464 is an abundant number, since it is smaller than the sum of its proper divisors (17943136).

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

16530464 is a wasteful number, since it uses less digits than its factorization.

16530464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 16530464 is about 4065.7673322511. The cubic root of 16530464 is about 254.7387507661.

The spelling of 16530464 in words is "sixteen million, five hundred thirty thousand, four hundred sixty-four".