1690496 has 32 divisors (see below), whose sum is σ = 3451680. Its totient is φ = 824320.

The previous prime is 1690483. The next prime is 1690519. The reversal of 1690496 is 6940961.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent 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, 5876 + ... + 6156.

It is an arithmetic number, because the mean of its divisors is an integer number (107865).

2^1690496 is an apocalyptic number.

1690496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1690496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1725840).

1690496 is an abundant number, since it is smaller than the sum of its proper divisors (1761184).

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

1690496 is an equidigital number, since it uses as much as digits as its factorization.

1690496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 1690496 is about 1300.1907552356. The cubic root of 1690496 is about 119.1254943317.

The spelling of 1690496 in words is "one million, six hundred ninety thousand, four hundred ninety-six".