4228197381 has 16 divisors (see below), whose sum is σ = 6632467200. Its totient is φ = 2652986304.

The previous prime is 4228197373. The next prime is 4228197383. The reversal of 4228197381 is 1837918224.

It is a happy number.

4228197381 is a `hidden beast` number, since 422 + 8 + 197 + 38 + 1 = 666.

It is not a de Polignac number, because 4228197381 - 2³ = 4228197373 is a prime.

It is a super-2 number, since 2×4228197381² = 35755306185390518322, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4228197383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4605421 + ... + 4606338.

It is an arithmetic number, because the mean of its divisors is an integer number (414529200).

Almost surely, 2^4228197381 is an apocalyptic number.

It is an amenable number.

4228197381 is a deficient number, since it is larger than the sum of its proper divisors (2404269819).

4228197381 is a wasteful number, since it uses less digits than its factorization.

4228197381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9211785 (or 9211779 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 4228197381 is about 65024.5905869464. The cubic root of 4228197381 is about 1617.0312673588.

The spelling of 4228197381 in words is "four billion, two hundred twenty-eight million, one hundred ninety-seven thousand, three hundred eighty-one".