16468578 has 48 divisors (see below), whose sum is σ = 42194880. Its totient is φ = 4542048.

The previous prime is 16468561. The next prime is 16468579. The reversal of 16468578 is 87586461.

It is a happy number.

16468578 is a `hidden beast` number, since 16 + 4 + 68 + 578 = 666.

It is a super-2 number, since 2×16468578² = 542428122684168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16468579) 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 23 ways as a sum of consecutive naturals, for example, 1401 + ... + 5907.

It is an arithmetic number, because the mean of its divisors is an integer number (879060).

Almost surely, 2^16468578 is an apocalyptic number.

16468578 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16468578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21097440).

16468578 is an abundant number, since it is smaller than the sum of its proper divisors (25726302).

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

16468578 is a wasteful number, since it uses less digits than its factorization.

16468578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4551 (or 4548 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 16468578 is about 4058.1495783177. The cubic root of 16468578 is about 254.4204601143.

The spelling of 16468578 in words is "sixteen million, four hundred sixty-eight thousand, five hundred seventy-eight".