1842386172 has 144 divisors (see below), whose sum is σ = 4962327552. Its totient is φ = 531432000.

The previous prime is 1842386113. The next prime is 1842386179. The reversal of 1842386172 is 2716832481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842386179) 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 47 ways as a sum of consecutive naturals, for example, 30203022 + ... + 30203082.

It is an arithmetic number, because the mean of its divisors is an integer number (34460608).

Almost surely, 2^1842386172 is an apocalyptic number.

1842386172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1842386172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2481163776).

1842386172 is an abundant number, since it is smaller than the sum of its proper divisors (3119941380).

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

1842386172 is a wasteful number, since it uses less digits than its factorization.

1842386172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 108 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 1842386172 is about 42923.0261281751. The cubic root of 1842386172 is about 1225.9146126974.

The spelling of 1842386172 in words is "one billion, eight hundred forty-two million, three hundred eighty-six thousand, one hundred seventy-two".