3601491840 has 192 divisors, whose sum is σ = 12480577200. Its totient is φ = 956989440.

The previous prime is 3601491811. The next prime is 3601491913. The reversal of 3601491840 is 481941063.

3601491840 is a `hidden beast` number, since 3 + 601 + 4 + 9 + 1 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3601491795 and 3601491804.

It is a congruent number.

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, 1905616 + ... + 1907504.

Almost surely, 2^3601491840 is an apocalyptic number.

3601491840 is a gapful number since it is divisible by the number (30) 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 3601491840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6240288600).

3601491840 is an abundant number, since it is smaller than the sum of its proper divisors (8879085360).

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

3601491840 is a wasteful number, since it uses less digits than its factorization.

3601491840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2245 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 3601491840 is about 60012.4307123116. The cubic root of 3601491840 is about 1532.8305413027.

The spelling of 3601491840 in words is "three billion, six hundred one million, four hundred ninety-one thousand, eight hundred forty".