3520644624 has 120 divisors (see below), whose sum is σ = 11419304832. Its totient is φ = 991710720.

The previous prime is 3520644623. The next prime is 3520644641. The reversal of 3520644624 is 4264460253.

3520644624 is a `hidden beast` number, since 3 + 5 + 2 + 0 + 644 + 6 + 2 + 4 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (3520644623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46972 + ... + 96164.

Almost surely, 2^3520644624 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 3520644624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5709652416).

3520644624 is an abundant number, since it is smaller than the sum of its proper divisors (7898660208).

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

3520644624 is a wasteful number, since it uses less digits than its factorization.

3520644624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49285 (or 49276 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 3520644624 is about 59335.0202157208. The cubic root of 3520644624 is about 1521.2738375165.

The spelling of 3520644624 in words is "three billion, five hundred twenty million, six hundred forty-four thousand, six hundred twenty-four".