1204423136 has 36 divisors (see below), whose sum is σ = 2758347648. Its totient is φ = 516180672.

The previous prime is 1204423133. The next prime is 1204423141. The reversal of 1204423136 is 6313244021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204423133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 382496 + ... + 385631.

It is an arithmetic number, because the mean of its divisors is an integer number (76620768).

Almost surely, 2^1204423136 is an apocalyptic number.

1204423136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1204423136 is an abundant number, since it is smaller than the sum of its proper divisors (1553924512).

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

1204423136 is an equidigital number, since it uses as much as digits as its factorization.

1204423136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768151 (or 768136 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1204423136 is about 34704.7998985731. The cubic root of 1204423136 is about 1063.9626025637.

Adding to 1204423136 its reverse (6313244021), we get a palindrome (7517667157).

The spelling of 1204423136 in words is "one billion, two hundred four million, four hundred twenty-three thousand, one hundred thirty-six".