1838219156 has 12 divisors (see below), whose sum is σ = 3356748192. Its totient is φ = 879148248.

The previous prime is 1838219153. The next prime is 1838219189. The reversal of 1838219156 is 6519128381.

It is a super-3 number, since 3×1838219156³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1838219153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9990230 + ... + 9990413.

It is an arithmetic number, because the mean of its divisors is an integer number (279729016).

Almost surely, 2^1838219156 is an apocalyptic number.

It is an amenable number.

1838219156 is a deficient number, since it is larger than the sum of its proper divisors (1518529036).

1838219156 is a wasteful number, since it uses less digits than its factorization.

1838219156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19980670 (or 19980668 counting only the distinct ones).

The product of its digits is 103680, while the sum is 44.

The square root of 1838219156 is about 42874.4580840388. The cubic root of 1838219156 is about 1224.9896777695.

The spelling of 1838219156 in words is "one billion, eight hundred thirty-eight million, two hundred nineteen thousand, one hundred fifty-six".