180344142 has 96 divisors (see below), whose sum is σ = 443888640. Its totient is φ = 52436160.

The previous prime is 180344119. The next prime is 180344147. The reversal of 180344142 is 241443081.

180344142 is a `hidden beast` number, since 180 + 3 + 441 + 42 = 666.

It is a super-3 number, since 3×180344142³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180344147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 754459 + ... + 754697.

It is an arithmetic number, because the mean of its divisors is an integer number (4623840).

Almost surely, 2^180344142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180344142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221944320).

180344142 is an abundant number, since it is smaller than the sum of its proper divisors (263544498).

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

180344142 is a wasteful number, since it uses less digits than its factorization.

180344142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 395 counting only the distinct ones).

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

The square root of 180344142 is about 13429.2271557227. The cubic root of 180344142 is about 564.9812216068.

The spelling of 180344142 in words is "one hundred eighty million, three hundred forty-four thousand, one hundred forty-two".