1948222969 has 16 divisors (see below), whose sum is σ = 2556794880. Its totient is φ = 1438194960.

The previous prime is 1948222963. The next prime is 1948223021. The reversal of 1948222969 is 9692228491.

It is a cyclic number.

It is not a de Polignac number, because 1948222969 - 2⁷ = 1948222841 is a prime.

It is a super-2 number, since 2×1948222969² = 7591145473878349922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1948222963) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 664369 + ... + 667294.

It is an arithmetic number, because the mean of its divisors is an integer number (159799680).

Almost surely, 2^1948222969 is an apocalyptic number.

1948222969 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1948222969 is a deficient number, since it is larger than the sum of its proper divisors (608571911).

1948222969 is a wasteful number, since it uses less digits than its factorization.

1948222969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331700.

The product of its digits is 1119744, while the sum is 52.

The square root of 1948222969 is about 44138.6788316098. The cubic root of 1948222969 is about 1248.9533572624.

It can be divided in two parts, 194822 and 2969, that added together give a palindrome (197791).

The spelling of 1948222969 in words is "one billion, nine hundred forty-eight million, two hundred twenty-two thousand, nine hundred sixty-nine".