1690495914 has 8 divisors (see below), whose sum is σ = 3380991840. Its totient is φ = 563498636.

The previous prime is 1690495903. The next prime is 1690495931. The reversal of 1690495914 is 4195940961.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

1690495914 is an admirable number.

It is a Curzon 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, 140874654 + ... + 140874665.

It is an arithmetic number, because the mean of its divisors is an integer number (422623980).

Almost surely, 2^1690495914 is an apocalyptic number.

1690495914 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.

1690495914 is a wasteful number, since it uses less digits than its factorization.

1690495914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281749324.

The product of its (nonzero) digits is 349920, while the sum is 48.

The square root of 1690495914 is about 41115.6407465578. The cubic root of 1690495914 is about 1191.2549231159.

The spelling of 1690495914 in words is "one billion, six hundred ninety million, four hundred ninety-five thousand, nine hundred fourteen".