1950220771 has 4 divisors (see below), whose sum is σ = 1950359200. Its totient is φ = 1950082344.

The previous prime is 1950220759. The next prime is 1950220843. The reversal of 1950220771 is 1770220591.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1950220771 - 2¹¹ = 1950218723 is a prime.

It is a super-2 number, since 2×1950220771² = 7606722111279668882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1950220721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45336 + ... + 77173.

It is an arithmetic number, because the mean of its divisors is an integer number (487589800).

Almost surely, 2^1950220771 is an apocalyptic number.

1950220771 is a deficient number, since it is larger than the sum of its proper divisors (138429).

1950220771 is a wasteful number, since it uses less digits than its factorization.

1950220771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138428.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 1950220771 is about 44161.3040002217. The cubic root of 1950220771 is about 1249.3801238003.

The spelling of 1950220771 in words is "one billion, nine hundred fifty million, two hundred twenty thousand, seven hundred seventy-one".