16730425 has 12 divisors (see below), whose sum is σ = 20800876. Its totient is φ = 13348800.

The previous prime is 16730423. The next prime is 16730437. The reversal of 16730425 is 52403761.

It can be written as a sum of positive squares in 6 ways, for example, as 59536 + 16670889 = 244^2 + 4083^2 .

It is not a de Polignac number, because 16730425 - 2¹ = 16730423 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16730393 and 16730402.

It is not an unprimeable number, because it can be changed into a prime (16730423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12907 + ... + 14143.

Almost surely, 2^16730425 is an apocalyptic number.

It is an amenable number.

16730425 is a deficient number, since it is larger than the sum of its proper divisors (4070451).

16730425 is a wasteful number, since it uses less digits than its factorization.

16730425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788 (or 1783 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 16730425 is about 4090.2842199534. The cubic root of 16730425 is about 255.7617870740.

The spelling of 16730425 in words is "sixteen million, seven hundred thirty thousand, four hundred twenty-five".