3720641144 has 16 divisors (see below), whose sum is σ = 7610402520. Its totient is φ = 1691200480.

The previous prime is 3720641143. The next prime is 3720641167. The reversal of 3720641144 is 4411460273.

It is a self number, because there is not a number n which added to its sum of digits gives 3720641144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720641143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21139919 + ... + 21140094.

Almost surely, 2^3720641144 is an apocalyptic number.

It is an amenable number.

3720641144 is an abundant number, since it is smaller than the sum of its proper divisors (3889761376).

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

3720641144 is a wasteful number, since it uses less digits than its factorization.

3720641144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42280030 (or 42280026 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 3720641144 is about 60997.0584864549. The cubic root of 3720641144 is about 1549.5511907655.

The spelling of 3720641144 in words is "three billion, seven hundred twenty million, six hundred forty-one thousand, one hundred forty-four".