16945634 has 8 divisors (see below), whose sum is σ = 26913708. Its totient is φ = 7974400.

The previous prime is 16945631. The next prime is 16945639. The reversal of 16945634 is 43654961.

It can be written as a sum of positive squares in 2 ways, for example, as 14799409 + 2146225 = 3847^2 + 1465^2 .

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

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (16945631) 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, 249167 + ... + 249234.

Almost surely, 2^16945634 is an apocalyptic number.

16945634 is a deficient number, since it is larger than the sum of its proper divisors (9968074).

16945634 is a wasteful number, since it uses less digits than its factorization.

16945634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498420.

The product of its digits is 77760, while the sum is 38.

The square root of 16945634 is about 4116.5075002968. The cubic root of 16945634 is about 256.8537677389.

The spelling of 16945634 in words is "sixteen million, nine hundred forty-five thousand, six hundred thirty-four".