16419641 has 16 divisors (see below), whose sum is σ = 19353600. Its totient is φ = 13640208.

The previous prime is 16419563. The next prime is 16419643. The reversal of 16419641 is 14691461.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16419641 is a prime.

It is a super-2 number, since 2×16419641² = 539209221137762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16419598 and 16419607.

It is not an unprimeable number, because it can be changed into a prime (16419643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34040 + ... + 34518.

It is an arithmetic number, because the mean of its divisors is an integer number (1209600).

Almost surely, 2^16419641 is an apocalyptic number.

It is an amenable number.

16419641 is a deficient number, since it is larger than the sum of its proper divisors (2933959).

16419641 is an equidigital number, since it uses as much as digits as its factorization.

16419641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628.

The product of its digits is 5184, while the sum is 32.

The square root of 16419641 is about 4052.1156202655. The cubic root of 16419641 is about 254.1682034247.

The spelling of 16419641 in words is "sixteen million, four hundred nineteen thousand, six hundred forty-one".