16123432 has 32 divisors (see below), whose sum is σ = 32747400. Its totient is φ = 7398144.

The previous prime is 16123421. The next prime is 16123447. The reversal of 16123432 is 23432161.

It can be written as a sum of positive squares in 4 ways, for example, as 16112196 + 11236 = 4014^2 + 106^2 .

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23478 + ... + 24154.

Almost surely, 2^16123432 is an apocalyptic number.

It is an amenable number.

16123432 is an abundant number, since it is smaller than the sum of its proper divisors (16623968).

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

16123432 is a wasteful number, since it uses less digits than its factorization.

16123432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925 (or 921 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

The square root of 16123432 is about 4015.3993574737. The cubic root of 16123432 is about 252.6305282059.

Adding to 16123432 its reverse (23432161), we get a palindrome (39555593).

The spelling of 16123432 in words is "sixteen million, one hundred twenty-three thousand, four hundred thirty-two".