3722220385 has 16 divisors (see below), whose sum is σ = 4820336640. Its totient is φ = 2742955200.

The previous prime is 3722220377. The next prime is 3722220391. The reversal of 3722220385 is 5830222273.

It is not a de Polignac number, because 3722220385 - 2³ = 3722220377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3722220385.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28641 + ... + 90910.

It is an arithmetic number, because the mean of its divisors is an integer number (301271040).

Almost surely, 2^3722220385 is an apocalyptic number.

It is an amenable number.

3722220385 is a deficient number, since it is larger than the sum of its proper divisors (1098116255).

3722220385 is a wasteful number, since it uses less digits than its factorization.

3722220385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120048.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 3722220385 is about 61010.0023356826. The cubic root of 3722220385 is about 1549.7703974855.

The spelling of 3722220385 in words is "three billion, seven hundred twenty-two million, two hundred twenty thousand, three hundred eighty-five".