16219242 has 24 divisors (see below), whose sum is σ = 37845444. Its totient is φ = 4990464.

The previous prime is 16219211. The next prime is 16219289. The reversal of 16219242 is 24291261.

It can be written as a sum of positive squares in 2 ways, for example, as 15848361 + 370881 = 3981^2 + 609^2 .

It is a super-2 number, since 2×16219242² = 526127622109128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34423 + ... + 34890.

Almost surely, 2^16219242 is an apocalyptic number.

16219242 is an abundant number, since it is smaller than the sum of its proper divisors (21626202).

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

16219242 is a wasteful number, since it uses less digits than its factorization.

16219242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69334 (or 69331 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16219242 is about 4027.3120067857. The cubic root of 16219242 is about 253.1299410101.

It can be divided in two parts, 16219 and 242, that added together give a palindrome (16461).

The spelling of 16219242 in words is "sixteen million, two hundred nineteen thousand, two hundred forty-two".