1690568012 has 36 divisors (see below), whose sum is σ = 3552542784. Its totient is φ = 701154720.

The previous prime is 1690568003. The next prime is 1690568017. The reversal of 1690568012 is 2108650961.

It is not an unprimeable number, because it can be changed into a prime (1690568017) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 133043 + ... + 145194.

It is an arithmetic number, because the mean of its divisors is an integer number (98681744).

Almost surely, 2^1690568012 is an apocalyptic number.

It is an amenable number.

1690568012 is an abundant number, since it is smaller than the sum of its proper divisors (1861974772).

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

1690568012 is a wasteful number, since it uses less digits than its factorization.

1690568012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278286 (or 278277 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 1690568012 is about 41116.5175081743. The cubic root of 1690568012 is about 1191.2718581616.

The spelling of 1690568012 in words is "one billion, six hundred ninety million, five hundred sixty-eight thousand, twelve".