3521649600 has 1008 divisors, whose sum is σ = 15722803200. Its totient is φ = 745113600.

The previous prime is 3521649589. The next prime is 3521649611. The reversal of 3521649600 is 69461253.

It is a happy number.

3521649600 is a `hidden beast` number, since 3 + 5 + 2 + 1 + 6 + 49 + 600 = 666.

It is an interprime number because it is at equal distance from previous prime (3521649589) and next prime (3521649611).

It is a tau number, because it is divible by the number of its divisors (1008).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 113601585 + ... + 113601615.

Almost surely, 2^3521649600 is an apocalyptic number.

3521649600 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 3521649600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7861401600).

3521649600 is an abundant number, since it is smaller than the sum of its proper divisors (12201153600).

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

3521649600 is a wasteful number, since it uses less digits than its factorization.

3521649600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 3521649600 is about 59343.4882695650. The cubic root of 3521649600 is about 1521.4185741023.

The spelling of 3521649600 in words is "three billion, five hundred twenty-one million, six hundred forty-nine thousand, six hundred".