3720362381 has 4 divisors (see below), whose sum is σ = 3723903264. Its totient is φ = 3716821500.

The previous prime is 3720362323. The next prime is 3720362389. The reversal of 3720362381 is 1832630273.

3720362381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3720362381 - 2²⁶ = 3653253517 is a prime.

It is a super-2 number, since 2×3720362381² = 27682192491919978322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3720362389) 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, 1768865 + ... + 1770966.

It is an arithmetic number, because the mean of its divisors is an integer number (930975816).

Almost surely, 2^3720362381 is an apocalyptic number.

It is an amenable number.

3720362381 is a deficient number, since it is larger than the sum of its proper divisors (3540883).

3720362381 is a wasteful number, since it uses less digits than its factorization.

3720362381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540882.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 3720362381 is about 60994.7733908406. The cubic root of 3720362381 is about 1549.5124905961.

The spelling of 3720362381 in words is "three billion, seven hundred twenty million, three hundred sixty-two thousand, three hundred eighty-one".