1669432492 has 96 divisors (see below), whose sum is σ = 3807104000. Its totient is φ = 622017792.

The previous prime is 1669432481. The next prime is 1669432517. The reversal of 1669432492 is 2942349661.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1375678 + ... + 1376890.

Almost surely, 2^1669432492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1669432492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1903552000).

1669432492 is an abundant number, since it is smaller than the sum of its proper divisors (2137671508).

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

1669432492 is a wasteful number, since it uses less digits than its factorization.

1669432492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1455 (or 1453 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 1669432492 is about 40858.6893083956. The cubic root of 1669432492 is about 1186.2865887449.

The spelling of 1669432492 in words is "one billion, six hundred sixty-nine million, four hundred thirty-two thousand, four hundred ninety-two".