3538505720 has 32 divisors (see below), whose sum is σ = 7974681120. Its totient is φ = 1413083520.

The previous prime is 3538505687. The next prime is 3538505723. The reversal of 3538505720 is 275058353.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3538505723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47636 + ... + 96675.

It is an arithmetic number, because the mean of its divisors is an integer number (249208785).

Almost surely, 2^3538505720 is an apocalyptic number.

It is an amenable number.

3538505720 is an abundant number, since it is smaller than the sum of its proper divisors (4436175400).

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

3538505720 is a wasteful number, since it uses less digits than its factorization.

3538505720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144935 (or 144931 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 3538505720 is about 59485.3403789539. The cubic root of 3538505720 is about 1523.8420980282.

The spelling of 3538505720 in words is "three billion, five hundred thirty-eight million, five hundred five thousand, seven hundred twenty".