16819042 has 16 divisors (see below), whose sum is σ = 25947000. Its totient is φ = 8173440.

The previous prime is 16819013. The next prime is 16819051. The reversal of 16819042 is 24091861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 5803281 + 11015761 = 2409^2 + 3319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 16818995 and 16819013.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10084 + ... + 11632.

Almost surely, 2^16819042 is an apocalyptic number.

16819042 is a deficient number, since it is larger than the sum of its proper divisors (9127958).

16819042 is a wasteful number, since it uses less digits than its factorization.

16819042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 16819042 is about 4101.1025346850. The cubic root of 16819042 is about 256.2125614946.

The spelling of 16819042 in words is "sixteen million, eight hundred nineteen thousand, forty-two".