16432004 has 12 divisors (see below), whose sum is σ = 28816704. Its totient is φ = 8198664.

The previous prime is 16432001. The next prime is 16432007. The reversal of 16432004 is 40023461.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16432001) and next prime (16432007).

It is not an unprimeable number, because it can be changed into a prime (16432001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2072 + ... + 6095.

It is an arithmetic number, because the mean of its divisors is an integer number (2401392).

Almost surely, 2^16432004 is an apocalyptic number.

It is an amenable number.

16432004 is a deficient number, since it is larger than the sum of its proper divisors (12384700).

16432004 is a wasteful number, since it uses less digits than its factorization.

16432004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8674 (or 8672 counting only the distinct ones).

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

The square root of 16432004 is about 4053.6408326343. The cubic root of 16432004 is about 254.2319785336.

Adding to 16432004 its reverse (40023461), we get a palindrome (56455465).

The spelling of 16432004 in words is "sixteen million, four hundred thirty-two thousand, four".