123432450 has 24 divisors (see below), whose sum is σ = 306112848. Its totient is φ = 32915280.

The previous prime is 123432433. The next prime is 123432473. The reversal of 123432450 is 54234321.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123432450.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411292 + ... + 411591.

It is an arithmetic number, because the mean of its divisors is an integer number (12754702).

Almost surely, 2^123432450 is an apocalyptic number.

123432450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123432450 is an abundant number, since it is smaller than the sum of its proper divisors (182680398).

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

123432450 is a wasteful number, since it uses less digits than its factorization.

123432450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822898 (or 822893 counting only the distinct ones).

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

The square root of 123432450 is about 11110.0157515640. The cubic root of 123432450 is about 497.9011351944.

Adding to 123432450 its reverse (54234321), we get a palindrome (177666771).

The spelling of 123432450 in words is "one hundred twenty-three million, four hundred thirty-two thousand, four hundred fifty".