16430642 has 8 divisors (see below), whose sum is σ = 24667500. Its totient is φ = 8208144.

The previous prime is 16430641. The next prime is 16430681. The reversal of 16430642 is 24603461.

It can be written as a sum of positive squares in 2 ways, for example, as 11363641 + 5067001 = 3371^2 + 2251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (16430641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17 + ... + 5732.

Almost surely, 2^16430642 is an apocalyptic number.

16430642 is a deficient number, since it is larger than the sum of its proper divisors (8236858).

16430642 is a wasteful number, since it uses less digits than its factorization.

16430642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7180.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 16430642 is about 4053.4728320293. The cubic root of 16430642 is about 254.2249541617.

The spelling of 16430642 in words is "sixteen million, four hundred thirty thousand, six hundred forty-two".