1690291616 has 48 divisors (see below), whose sum is σ = 3699376128. Its totient is φ = 754963200.

The previous prime is 1690291583. The next prime is 1690291619. The reversal of 1690291616 is 6161920961.

It is not an unprimeable number, because it can be changed into a prime (1690291619) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 52640 + ... + 78431.

It is an arithmetic number, because the mean of its divisors is an integer number (77070336).

Almost surely, 2^1690291616 is an apocalyptic number.

1690291616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1690291616 is an abundant number, since it is smaller than the sum of its proper divisors (2009084512).

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

1690291616 is a wasteful number, since it uses less digits than its factorization.

1690291616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131125 (or 131117 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 1690291616 is about 41113.1562398218. The cubic root of 1690291616 is about 1191.2069330950.

The spelling of 1690291616 in words is "one billion, six hundred ninety million, two hundred ninety-one thousand, six hundred sixteen".