3721667144 has 32 divisors (see below), whose sum is σ = 7559939520. Its totient is φ = 1707398976.

The previous prime is 3721667111. The next prime is 3721667177. The reversal of 3721667144 is 4417661273.

It is an interprime number because it is at equal distance from previous prime (3721667111) and next prime (3721667177).

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, 89774 + ... + 124509.

It is an arithmetic number, because the mean of its divisors is an integer number (236248110).

Almost surely, 2^3721667144 is an apocalyptic number.

It is an amenable number.

3721667144 is an abundant number, since it is smaller than the sum of its proper divisors (3838272376).

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

3721667144 is a wasteful number, since it uses less digits than its factorization.

3721667144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214469 (or 214465 counting only the distinct ones).

The product of its digits is 169344, while the sum is 41.

The square root of 3721667144 is about 61005.4681483554. The cubic root of 3721667144 is about 1549.6936118649.

The spelling of 3721667144 in words is "three billion, seven hundred twenty-one million, six hundred sixty-seven thousand, one hundred forty-four".