1233890 has 16 divisors (see below), whose sum is σ = 2538432. Its totient is φ = 423024.

The previous prime is 1233887. The next prime is 1233899. The reversal of 1233890 is 983321.

It is not an unprimeable number, because it can be changed into a prime (1233899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8744 + ... + 8883.

It is an arithmetic number, because the mean of its divisors is an integer number (158652).

2^1233890 is an apocalyptic number.

1233890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1233890 is an abundant number, since it is smaller than the sum of its proper divisors (1304542).

1233890 is a wasteful number, since it uses less digits than its factorization.

1233890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17641.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1233890 is about 1110.8060136676. The cubic root of 1233890 is about 107.2569595011.

The spelling of 1233890 in words is "one million, two hundred thirty-three thousand, eight hundred ninety".