3721890195 has 32 divisors (see below), whose sum is σ = 6630397440. Its totient is φ = 1980897120.

The previous prime is 3721890157. The next prime is 3721890209. The reversal of 3721890195 is 5910981273.

3721890195 is a `hidden beast` number, since 372 + 1 + 8 + 90 + 195 = 666.

It is not a de Polignac number, because 3721890195 - 2⁸ = 3721889939 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3721890195.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37440 + ... + 94050.

It is an arithmetic number, because the mean of its divisors is an integer number (207199920).

Almost surely, 2^3721890195 is an apocalyptic number.

3721890195 is a deficient number, since it is larger than the sum of its proper divisors (2908507245).

3721890195 is a wasteful number, since it uses less digits than its factorization.

3721890195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57112 (or 57106 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 3721890195 is about 61007.2962439740. The cubic root of 3721890195 is about 1549.7245705537.

The spelling of 3721890195 in words is "three billion, seven hundred twenty-one million, eight hundred ninety thousand, one hundred ninety-five".