3549534720 has 320 divisors, whose sum is σ = 12416633856. Its totient is φ = 861143040.

The previous prime is 3549534707. The next prime is 3549534749. The reversal of 3549534720 is 274359453.

It is a tau number, because it is divible by the number of its divisors (320).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4046922 + ... + 4047798.

Almost surely, 2^3549534720 is an apocalyptic number.

3549534720 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 3549534720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6208316928).

3549534720 is an abundant number, since it is smaller than the sum of its proper divisors (8867099136).

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

3549534720 is a wasteful number, since it uses less digits than its factorization.

3549534720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 935 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 42.

The square root of 3549534720 is about 59577.9717680956. The cubic root of 3549534720 is about 1525.4236529671.

The spelling of 3549534720 in words is "three billion, five hundred forty-nine million, five hundred thirty-four thousand, seven hundred twenty".