16908419 has 6 divisors (see below), whose sum is σ = 18585420. Its totient is φ = 15371180.

The previous prime is 16908383. The next prime is 16908443. The reversal of 16908419 is 91480961.

It is a happy number.

It is not a de Polignac number, because 16908419 - 2¹² = 16904323 is a prime.

It is a super-2 number, since 2×16908419² = 571789266159122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16908019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69749 + ... + 69990.

It is an arithmetic number, because the mean of its divisors is an integer number (3097570).

Almost surely, 2^16908419 is an apocalyptic number.

16908419 is a deficient number, since it is larger than the sum of its proper divisors (1677001).

16908419 is a wasteful number, since it uses less digits than its factorization.

16908419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139761 (or 139750 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 16908419 is about 4111.9848005556. The cubic root of 16908419 is about 256.6656009026.

The spelling of 16908419 in words is "sixteen million, nine hundred eight thousand, four hundred nineteen".