4219649 has 8 divisors (see below), whose sum is σ = 5032320. Its totient is φ = 3459456.

The previous prime is 4219609. The next prime is 4219651. The reversal of 4219649 is 9469124.

4219649 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 4219649 - 2¹² = 4215553 is a prime.

It is a super-4 number, since 4×4219649⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4219609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12944 + ... + 13265.

It is an arithmetic number, because the mean of its divisors is an integer number (629040).

Almost surely, 2^4219649 is an apocalyptic number.

It is an amenable number.

4219649 is a deficient number, since it is larger than the sum of its proper divisors (812671).

4219649 is a wasteful number, since it uses less digits than its factorization.

4219649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26239.

The product of its digits is 15552, while the sum is 35.

The square root of 4219649 is about 2054.1784245776. The cubic root of 4219649 is about 161.5940784885.

It can be divided in two parts, 42 and 19649, that added together give a palindrome (19691).

The spelling of 4219649 in words is "four million, two hundred nineteen thousand, six hundred forty-nine".