16419969 has 8 divisors (see below), whose sum is σ = 24325920. Its totient is φ = 10946628.

The previous prime is 16419961. The next prime is 16419979. The reversal of 16419969 is 96991461.

It is not a de Polignac number, because 16419969 - 2³ = 16419961 is a prime.

It is a super-2 number, since 2×16419969² = 539230763921922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16419961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 304047 + ... + 304100.

It is an arithmetic number, because the mean of its divisors is an integer number (3040740).

Almost surely, 2^16419969 is an apocalyptic number.

It is an amenable number.

16419969 is a deficient number, since it is larger than the sum of its proper divisors (7905951).

16419969 is an equidigital number, since it uses as much as digits as its factorization.

16419969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608156 (or 608150 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 16419969 is about 4052.1560927486. The cubic root of 16419969 is about 254.1698958412.

The spelling of 16419969 in words is "sixteen million, four hundred nineteen thousand, nine hundred sixty-nine".