3690489888 has 144 divisors (see below), whose sum is σ = 11007261720. Its totient is φ = 1171279872.

The previous prime is 3690489841. The next prime is 3690489919. The reversal of 3690489888 is 8889840963.

It can be written as a sum of positive squares in 4 ways, for example, as 2505202704 + 1185287184 = 50052^2 + 34428^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×3690489888² = 27239431226860505088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 606670 + ... + 612722.

Almost surely, 2^3690489888 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 3690489888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5503630860).

3690489888 is an abundant number, since it is smaller than the sum of its proper divisors (7316771832).

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

3690489888 is a wasteful number, since it uses less digits than its factorization.

3690489888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6171 (or 6160 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 63.

The square root of 3690489888 is about 60749.4023674307. The cubic root of 3690489888 is about 1545.3540923413.

The spelling of 3690489888 in words is "three billion, six hundred ninety million, four hundred eighty-nine thousand, eight hundred eighty-eight".