1243733834 has 16 divisors (see below), whose sum is σ = 2177480448. Its totient is φ = 521687472.

The previous prime is 1243733833. The next prime is 1243733837. The reversal of 1243733834 is 4383373421.

It is not an unprimeable number, because it can be changed into a prime (1243733831) 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, 944429 + ... + 945744.

It is an arithmetic number, because the mean of its divisors is an integer number (136092528).

Almost surely, 2^1243733834 is an apocalyptic number.

1243733834 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1243733834 is a deficient number, since it is larger than the sum of its proper divisors (933746614).

1243733834 is a wasteful number, since it uses less digits than its factorization.

1243733834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1890229.

The product of its digits is 145152, while the sum is 38.

The square root of 1243733834 is about 35266.6107529487. The cubic root of 1243733834 is about 1075.4143227877.

The spelling of 1243733834 in words is "one billion, two hundred forty-three million, seven hundred thirty-three thousand, eight hundred thirty-four".