1681848036 has 120 divisors (see below), whose sum is σ = 4811637600. Its totient is φ = 508032000.

The previous prime is 1681848013. The next prime is 1681848059. The reversal of 1681848036 is 6308481861.

It is a happy number.

1681848036 is a `hidden beast` number, since 168 + 1 + 8 + 480 + 3 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (1681848013) and next prime (1681848059).

It is a super-2 number, since 2×1681848036² = 5657225632394114592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1681847982 and 1681848000.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1599711 + ... + 1600761.

It is an arithmetic number, because the mean of its divisors is an integer number (40096980).

Almost surely, 2^1681848036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1681848036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2405818800).

1681848036 is an abundant number, since it is smaller than the sum of its proper divisors (3129789564).

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

1681848036 is a wasteful number, since it uses less digits than its factorization.

1681848036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1527 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1681848036 is about 41010.3405984393. The cubic root of 1681848036 is about 1189.2201269197.

The spelling of 1681848036 in words is "one billion, six hundred eighty-one million, eight hundred forty-eight thousand, thirty-six".