16730506 has 16 divisors (see below), whose sum is σ = 27959400. Its totient is φ = 7455168.

The previous prime is 16730491. The next prime is 16730509. The reversal of 16730506 is 60503761.

It can be written as a sum of positive squares in 4 ways, for example, as 13024881 + 3705625 = 3609^2 + 1925^2 .

It is not an unprimeable number, because it can be changed into a prime (16730509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10341 + ... + 11848.

Almost surely, 2^16730506 is an apocalyptic number.

16730506 is a deficient number, since it is larger than the sum of its proper divisors (11228894).

16730506 is a wasteful number, since it uses less digits than its factorization.

16730506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22233.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 16730506 is about 4090.2941214539. The cubic root of 16730506 is about 255.7621998285.

The spelling of 16730506 in words is "sixteen million, seven hundred thirty thousand, five hundred six".