123432004 has 12 divisors (see below), whose sum is σ = 223454700. Its totient is φ = 59587808.

The previous prime is 123431981. The next prime is 123432013. The reversal of 123432004 is 400234321.

It can be written as a sum of positive squares in 2 ways, for example, as 40985604 + 82446400 = 6402^2 + 9080^2 .

It is a super-2 number, since 2×123432004² = 30470919222912032, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531919 + ... + 532150.

It is an arithmetic number, because the mean of its divisors is an integer number (18621225).

Almost surely, 2^123432004 is an apocalyptic number.

It is an amenable number.

123432004 is a deficient number, since it is larger than the sum of its proper divisors (100022696).

123432004 is a wasteful number, since it uses less digits than its factorization.

123432004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064102 (or 1064100 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 123432004 is about 11109.9956795671. The cubic root of 123432004 is about 497.9005355029.

Adding to 123432004 its reverse (400234321), we get a palindrome (523666325).

The spelling of 123432004 in words is "one hundred twenty-three million, four hundred thirty-two thousand, four".