1642018332 has 24 divisors (see below), whose sum is σ = 3832466176. Its totient is φ = 547183728.

The previous prime is 1642018327. The next prime is 1642018333. The reversal of 1642018332 is 2338102461.

It is a self number, because there is not a number n which added to its sum of digits gives 1642018332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642018333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29373 + ... + 64395.

Almost surely, 2^1642018332 is an apocalyptic number.

1642018332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1642018332 is an abundant number, since it is smaller than the sum of its proper divisors (2190447844).

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

1642018332 is a wasteful number, since it uses less digits than its factorization.

1642018332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38937 (or 38935 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 1642018332 is about 40521.8253784303. The cubic root of 1642018332 is about 1179.7572832203.

The spelling of 1642018332 in words is "one billion, six hundred forty-two million, eighteen thousand, three hundred thirty-two".