1690013522 has 18 divisors (see below), whose sum is σ = 2602028079. Its totient is φ = 823234080.

The previous prime is 1690013513. The next prime is 1690013551. The reversal of 1690013522 is 2253100961.

It can be written as a sum of positive squares in 5 ways, for example, as 60357361 + 1629656161 = 7769^2 + 40369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=29069.

It is a super-2 number, since 2×1690013522² = 5712291409085688968, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 2383304 + ... + 2384012.

Almost surely, 2^1690013522 is an apocalyptic number.

1690013522 is a deficient number, since it is larger than the sum of its proper divisors (912014557).

1690013522 is an frugal number, since it uses more digits than its factorization.

1690013522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1690013522 is about 41109.7740446235. The cubic root of 1690013522 is about 1191.1416020270.

The spelling of 1690013522 in words is "one billion, six hundred ninety million, thirteen thousand, five hundred twenty-two".