3721540722 has 8 divisors (see below), whose sum is σ = 7443081456. Its totient is φ = 1240513572.

The previous prime is 3721540709. The next prime is 3721540729. The reversal of 3721540722 is 2270451273.

It is a sphenic number, since it is the product of 3 distinct primes.

3721540722 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (3721540729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310128388 + ... + 310128399.

It is an arithmetic number, because the mean of its divisors is an integer number (930385182).

Almost surely, 2^3721540722 is an apocalyptic number.

3721540722 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3721540722 is a wasteful number, since it uses less digits than its factorization.

3721540722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620256792.

The product of its (nonzero) digits is 23520, while the sum is 33.

The square root of 3721540722 is about 61004.4319865368. The cubic root of 3721540722 is about 1549.6760643898.

Adding to 3721540722 its reverse (2270451273), we get a palindrome (5991991995).

The spelling of 3721540722 in words is "three billion, seven hundred twenty-one million, five hundred forty thousand, seven hundred twenty-two".