123404532 has 48 divisors (see below), whose sum is σ = 293698944. Its totient is φ = 40320000.

The previous prime is 123404497. The next prime is 123404537. The reversal of 123404532 is 235404321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123404537) 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 15 ways as a sum of consecutive naturals, for example, 205032 + ... + 205632.

It is an arithmetic number, because the mean of its divisors is an integer number (6118728).

Almost surely, 2^123404532 is an apocalyptic number.

123404532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123404532 is an abundant number, since it is smaller than the sum of its proper divisors (170294412).

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

123404532 is a wasteful number, since it uses less digits than its factorization.

123404532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920 (or 918 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 123404532 is about 11108.7592466486. The cubic root of 123404532 is about 497.8635938725.

Adding to 123404532 its reverse (235404321), we get a palindrome (358808853).

The spelling of 123404532 in words is "one hundred twenty-three million, four hundred four thousand, five hundred thirty-two".