1642673424 has 80 divisors (see below), whose sum is σ = 5105070080. Its totient is φ = 444631680.

The previous prime is 1642673387. The next prime is 1642673437. The reversal of 1642673424 is 4243762461.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 122272 + ... + 135039.

It is an arithmetic number, because the mean of its divisors is an integer number (63813376).

Almost surely, 2^1642673424 is an apocalyptic number.

1642673424 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1642673424 is an abundant number, since it is smaller than the sum of its proper divisors (3462396656).

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

1642673424 is a wasteful number, since it uses less digits than its factorization.

1642673424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257348 (or 257342 counting only the distinct ones).

The product of its digits is 193536, while the sum is 39.

The square root of 1642673424 is about 40529.9077719158. The cubic root of 1642673424 is about 1179.9141525212.

The spelling of 1642673424 in words is "one billion, six hundred forty-two million, six hundred seventy-three thousand, four hundred twenty-four".