1692221068 has 12 divisors (see below), whose sum is σ = 2963094232. Its totient is φ = 845622720.

The previous prime is 1692221051. The next prime is 1692221081. The reversal of 1692221068 is 8601222961.

It is a super-2 number, since 2×1692221068² = 5727224285966121248, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114093 + ... + 128068.

Almost surely, 2^1692221068 is an apocalyptic number.

It is an amenable number.

1692221068 is a deficient number, since it is larger than the sum of its proper divisors (1270873164).

1692221068 is a wasteful number, since it uses less digits than its factorization.

1692221068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243912 (or 243910 counting only the distinct ones).

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

The square root of 1692221068 is about 41136.6146881340. The cubic root of 1692221068 is about 1191.6600112516.

The spelling of 1692221068 in words is "one billion, six hundred ninety-two million, two hundred twenty-one thousand, sixty-eight".