1233889992 has 48 divisors (see below), whose sum is σ = 3343513680. Its totient is φ = 411084000.

The previous prime is 1233889991. The next prime is 1233890003. The reversal of 1233889992 is 2999883321.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1233889991) 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, 202267 + ... + 208277.

It is an arithmetic number, because the mean of its divisors is an integer number (69656535).

Almost surely, 2^1233889992 is an apocalyptic number.

1233889992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1233889992 is an abundant number, since it is smaller than the sum of its proper divisors (2109623688).

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

1233889992 is a wasteful number, since it uses less digits than its factorization.

1233889992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8867 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 1233889992 is about 35126.7703041427. The cubic root of 1233889992 is about 1072.5695926935.

The spelling of 1233889992 in words is "one billion, two hundred thirty-three million, eight hundred eighty-nine thousand, nine hundred ninety-two".