1233446890 has 16 divisors (see below), whose sum is σ = 2390989608. Its totient is φ = 455426496.

The previous prime is 1233446857. The next prime is 1233446891. The reversal of 1233446890 is 986443321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 572597041 + 660849849 = 23929^2 + 25707^2 .

It is not an unprimeable number, because it can be changed into a prime (1233446891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4743897 + ... + 4744156.

Almost surely, 2^1233446890 is an apocalyptic number.

1233446890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1233446890 is a deficient number, since it is larger than the sum of its proper divisors (1157542718).

1233446890 is a wasteful number, since it uses less digits than its factorization.

1233446890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9488073.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 1233446890 is about 35120.4625539015. The cubic root of 1233446890 is about 1072.4411872343.

The spelling of 1233446890 in words is "one billion, two hundred thirty-three million, four hundred forty-six thousand, eight hundred ninety".