1669393224 has 48 divisors (see below), whose sum is σ = 4554302220. Its totient is φ = 552399360.

The previous prime is 1669393223. The next prime is 1669393237. The reversal of 1669393224 is 4223939661.

It can be written as a sum of positive squares in 2 ways, for example, as 1667088900 + 2304324 = 40830^2 + 1518^2 .

It is a super-2 number, since 2×1669393224² = 5573747472674228352, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1669393224.

It is not an unprimeable number, because it can be changed into a prime (1669393223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74757 + ... + 94484.

Almost surely, 2^1669393224 is an apocalyptic number.

It is an amenable number.

1669393224 is an abundant number, since it is smaller than the sum of its proper divisors (2884908996).

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

1669393224 is a wasteful number, since it uses less digits than its factorization.

1669393224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169390 (or 169383 counting only the distinct ones).

The product of its digits is 419904, while the sum is 45.

The square root of 1669393224 is about 40858.2087713106. The cubic root of 1669393224 is about 1186.2772874869.

The spelling of 1669393224 in words is "one billion, six hundred sixty-nine million, three hundred ninety-three thousand, two hundred twenty-four".