180021024342 has 40 divisors (see below), whose sum is σ = 403446052416. Its totient is φ = 59997248208.

The previous prime is 180021024299. The next prime is 180021024343. The reversal of 180021024342 is 243420120081.

180021024342 is a `hidden beast` number, since 18 + 0 + 0 + 210 + 2 + 434 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180021024343) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 945243 + ... + 1119609.

Almost surely, 2^180021024342 is an apocalyptic number.

180021024342 is an abundant number, since it is smaller than the sum of its proper divisors (223425028074).

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

180021024342 is a wasteful number, since it uses less digits than its factorization.

180021024342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180754 (or 180745 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

The spelling of 180021024342 in words is "one hundred eighty billion, twenty-one million, twenty-four thousand, three hundred forty-two".