3720218136 has 32 divisors (see below), whose sum is σ = 9621255600. Its totient is φ = 1197311360.

The previous prime is 3720218113. The next prime is 3720218179. The reversal of 3720218136 is 6318120273.

3720218136 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3720218097 and 3720218106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2671875 + ... + 2673266.

Almost surely, 2^3720218136 is an apocalyptic number.

It is an amenable number.

3720218136 is an abundant number, since it is smaller than the sum of its proper divisors (5901037464).

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

3720218136 is a wasteful number, since it uses less digits than its factorization.

3720218136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345179 (or 5345175 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 3720218136 is about 60993.5909419998. The cubic root of 3720218136 is about 1549.4924645615.

The spelling of 3720218136 in words is "three billion, seven hundred twenty million, two hundred eighteen thousand, one hundred thirty-six".