1690416028 has 12 divisors (see below), whose sum is σ = 3380832112. Its totient is φ = 724464000.

The previous prime is 1690416001. The next prime is 1690416031. The reversal of 1690416028 is 8206140961.

It is a happy number.

1690416028 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30185973 + ... + 30186028.

Almost surely, 2^1690416028 is an apocalyptic number.

It is an amenable number.

1690416028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1690416028 is a wasteful number, since it uses less digits than its factorization.

1690416028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60372012 (or 60372010 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1690416028 is about 41114.6692556319. The cubic root of 1690416028 is about 1191.2361581904.

Adding to 1690416028 its reverse (8206140961), we get a palindrome (9896556989).

The spelling of 1690416028 in words is "one billion, six hundred ninety million, four hundred sixteen thousand, twenty-eight".