16304042 has 4 divisors (see below), whose sum is σ = 24456066. Its totient is φ = 8152020.

The previous prime is 16304017. The next prime is 16304053. The reversal of 16304042 is 24040361.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24040361 = 887 ⋅27103.

It can be written as a sum of positive squares in only one way, i.e., 10491121 + 5812921 = 3239^2 + 2411^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4076009 + ... + 4076012.

Almost surely, 2^16304042 is an apocalyptic number.

16304042 is a deficient number, since it is larger than the sum of its proper divisors (8152024).

16304042 is an equidigital number, since it uses as much as digits as its factorization.

16304042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8152023.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 16304042 is about 4037.8263954757. The cubic root of 16304042 is about 253.5703257016.

The spelling of 16304042 in words is "sixteen million, three hundred four thousand, forty-two".