2221873390 has 24 divisors (see below), whose sum is σ = 4396006440. Its totient is φ = 807953520.

The previous prime is 2221873387. The next prime is 2221873403. The reversal of 2221873390 is 933781222.

2221873390 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2221873390² = 9873442722380184200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 916920 + ... + 919339.

It is an arithmetic number, because the mean of its divisors is an integer number (183166935).

Almost surely, 2^2221873390 is an apocalyptic number.

2221873390 is a deficient number, since it is larger than the sum of its proper divisors (2174133050).

2221873390 is a wasteful number, since it uses less digits than its factorization.

2221873390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836288 (or 1836277 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 2221873390 is about 47136.7520094459. The cubic root of 2221873390 is about 1304.8875952175.

The spelling of 2221873390 in words is "two billion, two hundred twenty-one million, eight hundred seventy-three thousand, three hundred ninety".