123401432 has 64 divisors (see below), whose sum is σ = 290476800. Its totient is φ = 47744640.

The previous prime is 123401423. The next prime is 123401449. The reversal of 123401432 is 234104321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99794 + ... + 101022.

It is an arithmetic number, because the mean of its divisors is an integer number (4538700).

Almost surely, 2^123401432 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123401432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145238400).

123401432 is an abundant number, since it is smaller than the sum of its proper divisors (167075368).

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

123401432 is a wasteful number, since it uses less digits than its factorization.

123401432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1416 (or 1412 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123401432 is about 11108.6197162384. The cubic root of 123401432 is about 497.8594249546.

Adding to 123401432 its reverse (234104321), we get a palindrome (357505753).

The spelling of 123401432 in words is "one hundred twenty-three million, four hundred one thousand, four hundred thirty-two".