4221155790 has 48 divisors (see below), whose sum is σ = 11088172368. Its totient is φ = 1114034688.

The previous prime is 4221155789. The next prime is 4221155791. The reversal of 4221155790 is 975511224.

4221155790 is a `hidden beast` number, since 4 + 2 + 2 + 11 + 557 + 90 = 666.

It is an interprime number because it is at equal distance from previous prime (4221155789) and next prime (4221155791).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221155791) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 233032 + ... + 250491.

It is an arithmetic number, because the mean of its divisors is an integer number (231003591).

Almost surely, 2^4221155790 is an apocalyptic number.

4221155790 is an abundant number, since it is smaller than the sum of its proper divisors (6867016578).

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

4221155790 is a wasteful number, since it uses less digits than its factorization.

4221155790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483633 (or 483630 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 4221155790 is about 64970.4224243617. The cubic root of 4221155790 is about 1616.1331068573.

The spelling of 4221155790 in words is "four billion, two hundred twenty-one million, one hundred fifty-five thousand, seven hundred ninety".