3538836720 has 60 divisors (see below), whose sum is σ = 11884595736. Its totient is φ = 943689600.

The previous prime is 3538836683. The next prime is 3538836767. The reversal of 3538836720 is 276388353.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2456806 + ... + 2458245.

Almost surely, 2^3538836720 is an apocalyptic number.

3538836720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3538836720 is an abundant number, since it is smaller than the sum of its proper divisors (8345759016).

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

3538836720 is a wasteful number, since it uses less digits than its factorization.

3538836720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4915070 (or 4915061 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The square root of 3538836720 is about 59488.1225119771. The cubic root of 3538836720 is about 1523.8896111169.

The spelling of 3538836720 in words is "three billion, five hundred thirty-eight million, eight hundred thirty-six thousand, seven hundred twenty".