16069642 has 4 divisors (see below), whose sum is σ = 24104466. Its totient is φ = 8034820.

The previous prime is 16069637. The next prime is 16069661. The reversal of 16069642 is 24696061.

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., 8946081 + 7123561 = 2991^2 + 2669^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16069598 and 16069607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4017409 + ... + 4017412.

Almost surely, 2^16069642 is an apocalyptic number.

16069642 is a deficient number, since it is larger than the sum of its proper divisors (8034824).

16069642 is an equidigital number, since it uses as much as digits as its factorization.

16069642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8034823.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 16069642 is about 4008.6957978874. The cubic root of 16069642 is about 252.3492784122.

The spelling of 16069642 in words is "sixteen million, sixty-nine thousand, six hundred forty-two".