3520743408 has 560 divisors, whose sum is σ = 13115160576. Its totient is φ = 890196480.

The previous prime is 3520743361. The next prime is 3520743419. The reversal of 3520743408 is 8043470253.

It is a happy number.

3520743408 is a `hidden beast` number, since 3 + 5 + 207 + 43 + 408 = 666.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 32904091 + ... + 32904197.

Almost surely, 2^3520743408 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 3520743408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6557580288).

3520743408 is an abundant number, since it is smaller than the sum of its proper divisors (9594417168).

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

3520743408 is a wasteful number, since it uses less digits than its factorization.

3520743408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 3520743408 is about 59335.8526356536. The cubic root of 3520743408 is about 1521.2880656030.

The spelling of 3520743408 in words is "three billion, five hundred twenty million, seven hundred forty-three thousand, four hundred eight".