1853399226 has 24 divisors (see below), whose sum is σ = 4311990720. Its totient is φ = 529542552.

The previous prime is 1853399221. The next prime is 1853399243. The reversal of 1853399226 is 6229933581.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1853399221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3151746 + ... + 3152333.

It is an arithmetic number, because the mean of its divisors is an integer number (179666280).

Almost surely, 2^1853399226 is an apocalyptic number.

1853399226 is an abundant number, since it is smaller than the sum of its proper divisors (2458591494).

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

1853399226 is a wasteful number, since it uses less digits than its factorization.

1853399226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304098 (or 6304091 counting only the distinct ones).

The product of its digits is 699840, while the sum is 48.

The square root of 1853399226 is about 43051.1233999765. The cubic root of 1853399226 is about 1228.3524388311.

The spelling of 1853399226 in words is "one billion, eight hundred fifty-three million, three hundred ninety-nine thousand, two hundred twenty-six".