1690568014 has 4 divisors (see below), whose sum is σ = 2535852024. Its totient is φ = 845284006.

The previous prime is 1690568003. The next prime is 1690568017. The reversal of 1690568014 is 4108650961.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422642002 + ... + 422642005.

It is an arithmetic number, because the mean of its divisors is an integer number (633963006).

Almost surely, 2^1690568014 is an apocalyptic number.

1690568014 is a deficient number, since it is larger than the sum of its proper divisors (845284010).

1690568014 is an equidigital number, since it uses as much as digits as its factorization.

1690568014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845284009.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 1690568014 is about 41116.5175324954. The cubic root of 1690568014 is about 1191.2718586314.

The spelling of 1690568014 in words is "one billion, six hundred ninety million, five hundred sixty-eight thousand, fourteen".