16340625 has 72 divisors (see below), whose sum is σ = 34122816. Its totient is φ = 7380000.

The previous prime is 16340617. The next prime is 16340629. The reversal of 16340625 is 52604361.

16340625 is a `hidden beast` number, since 1 + 6 + 34 + 0 + 625 = 666.

It is not a de Polignac number, because 16340625 - 2³ = 16340617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16340629) 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 71 ways as a sum of consecutive naturals, for example, 196834 + ... + 196916.

It is an arithmetic number, because the mean of its divisors is an integer number (473928).

Almost surely, 2^16340625 is an apocalyptic number.

16340625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

16340625 is an abundant number, since it is smaller than the sum of its proper divisors (17782191).

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

16340625 is an frugal number, since it uses more digits than its factorization.

16340625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 16340625 is about 4042.3538934636. The cubic root of 16340625 is about 253.7598376799.

Adding to 16340625 its reverse (52604361), we get a palindrome (68944986).

The spelling of 16340625 in words is "sixteen million, three hundred forty thousand, six hundred twenty-five".