16219834 has 4 divisors (see below), whose sum is σ = 24329754. Its totient is φ = 8109916.

The previous prime is 16219817. The next prime is 16219849. The reversal of 16219834 is 43891261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 8684809 + 7535025 = 2947^2 + 2745^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16219834.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4054957 + ... + 4054960.

Almost surely, 2^16219834 is an apocalyptic number.

16219834 is a deficient number, since it is larger than the sum of its proper divisors (8109920).

16219834 is an equidigital number, since it uses as much as digits as its factorization.

16219834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8109919.

The product of its digits is 10368, while the sum is 34.

The square root of 16219834 is about 4027.3855042695. The cubic root of 16219834 is about 253.1330207081.

The spelling of 16219834 in words is "sixteen million, two hundred nineteen thousand, eight hundred thirty-four".