2271258990 has 384 divisors, whose sum is σ = 8400817152. Its totient is φ = 409743360.

The previous prime is 2271258971. The next prime is 2271259019. The reversal of 2271258990 is 998521722.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1530789 + ... + 1532271.

It is an arithmetic number, because the mean of its divisors is an integer number (21877128).

Almost surely, 2^2271258990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2271258990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4200408576).

2271258990 is an abundant number, since it is smaller than the sum of its proper divisors (6129558162).

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

2271258990 is a wasteful number, since it uses less digits than its factorization.

2271258990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1544 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The square root of 2271258990 is about 47657.7274951293. The cubic root of 2271258990 is about 1314.4847533474.

The spelling of 2271258990 in words is "two billion, two hundred seventy-one million, two hundred fifty-eight thousand, nine hundred ninety".