7228491192 has 80 divisors (see below), whose sum is σ = 21803914440. Its totient is φ = 2224148544.

The previous prime is 7228491191. The next prime is 7228491223. The reversal of 7228491192 is 2911948227.

7228491192 is a `hidden beast` number, since 72 + 2 + 8 + 491 + 1 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7228491191) 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 19 ways as a sum of consecutive naturals, for example, 420618 + ... + 437465.

Almost surely, 2^7228491192 is an apocalyptic number.

7228491192 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7228491192 is an abundant number, since it is smaller than the sum of its proper divisors (14575423248).

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

7228491192 is a wasteful number, since it uses less digits than its factorization.

7228491192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858114 (or 858101 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 7228491192 is about 85020.5339432775. The cubic root of 7228491192 is about 1933.5224487484.

The spelling of 7228491192 in words is "seven billion, two hundred twenty-eight million, four hundred ninety-one thousand, one hundred ninety-two".