1838345304 has 64 divisors (see below), whose sum is σ = 4846176000. Its totient is φ = 579519360.

The previous prime is 1838345297. The next prime is 1838345309. The reversal of 1838345304 is 4035438381.

It is a super-4 number, since 4×1838345304⁴ (a number of 38 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838345309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284542 + ... + 290930.

It is an arithmetic number, because the mean of its divisors is an integer number (75721500).

Almost surely, 2^1838345304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1838345304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2423088000).

1838345304 is an abundant number, since it is smaller than the sum of its proper divisors (3007830696).

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

1838345304 is a wasteful number, since it uses less digits than its factorization.

1838345304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7048 (or 7044 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 1838345304 is about 42875.9291910974. The cubic root of 1838345304 is about 1225.0176988141.

The spelling of 1838345304 in words is "one billion, eight hundred thirty-eight million, three hundred forty-five thousand, three hundred four".