1694573056 has 120 divisors (see below), whose sum is σ = 3942989820. Its totient is φ = 724500480.

The previous prime is 1694573053. The next prime is 1694573113. The reversal of 1694573056 is 6503754961.

It can be written as a sum of positive squares in 2 ways, for example, as 1353062656 + 341510400 = 36784^2 + 18480^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1694572997 and 1694573015.

It is not an unprimeable number, because it can be changed into a prime (1694573053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1052380 + ... + 1053988.

Almost surely, 2^1694573056 is an apocalyptic number.

1694573056 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 1694573056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1971494910).

1694573056 is an abundant number, since it is smaller than the sum of its proper divisors (2248416764).

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

1694573056 is a wasteful number, since it uses less digits than its factorization.

1694573056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666 (or 1639 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 46.

The square root of 1694573056 is about 41165.1922866880. The cubic root of 1694573056 is about 1192.2118446959.

The spelling of 1694573056 in words is "one billion, six hundred ninety-four million, five hundred seventy-three thousand, fifty-six".