16229438 has 4 divisors (see below), whose sum is σ = 24344160. Its totient is φ = 8114718.

The previous prime is 16229413. The next prime is 16229443. The reversal of 16229438 is 83492261.

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

It is a junction number, because it is equal to n+sod(n) for n = 16229398 and 16229407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4057358 + ... + 4057361.

It is an arithmetic number, because the mean of its divisors is an integer number (6086040).

Almost surely, 2^16229438 is an apocalyptic number.

16229438 is a deficient number, since it is larger than the sum of its proper divisors (8114722).

16229438 is an equidigital number, since it uses as much as digits as its factorization.

16229438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8114721.

The product of its digits is 20736, while the sum is 35.

The square root of 16229438 is about 4028.5776646355. The cubic root of 16229438 is about 253.1829721001.

The spelling of 16229438 in words is "sixteen million, two hundred twenty-nine thousand, four hundred thirty-eight".