16690416 has 20 divisors (see below), whose sum is σ = 43117032. Its totient is φ = 5563456.

The previous prime is 16690411. The next prime is 16690423. The reversal of 16690416 is 61409661.

It is a super-3 number, since 3×16690416³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16690411) 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, 173811 + ... + 173906.

Almost surely, 2^16690416 is an apocalyptic number.

16690416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16690416 is an abundant number, since it is smaller than the sum of its proper divisors (26426616).

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

16690416 is a wasteful number, since it uses less digits than its factorization.

16690416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347728 (or 347722 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16690416 is about 4085.3905566053. The cubic root of 16690416 is about 255.5577488015.

The spelling of 16690416 in words is "sixteen million, six hundred ninety thousand, four hundred sixteen".