1842450372 has 108 divisors (see below), whose sum is σ = 5564302380. Its totient is φ = 512168832.

The previous prime is 1842450329. The next prime is 1842450377. The reversal of 1842450372 is 2730542481.

It is a happy number.

1842450372 is a `hidden beast` number, since 1 + 84 + 2 + 4 + 503 + 72 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 749883456 + 1092566916 = 27384^2 + 33054^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1842450377) 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 35 ways as a sum of consecutive naturals, for example, 51154 + ... + 79382.

Almost surely, 2^1842450372 is an apocalyptic number.

1842450372 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 1842450372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2782151190).

1842450372 is an abundant number, since it is smaller than the sum of its proper divisors (3721852008).

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

1842450372 is a wasteful number, since it uses less digits than its factorization.

1842450372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28290 (or 28278 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 1842450372 is about 42923.7739720076. The cubic root of 1842450372 is about 1225.9288519858.

The spelling of 1842450372 in words is "one billion, eight hundred forty-two million, four hundred fifty thousand, three hundred seventy-two".