16400326 has 8 divisors (see below), whose sum is σ = 24937704. Its totient is φ = 8087760.

The previous prime is 16400317. The next prime is 16400347. The reversal of 16400326 is 62300461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 16400297 and 16400306.

It is a congruent number.

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, 56020 + ... + 56311.

It is an arithmetic number, because the mean of its divisors is an integer number (3117213).

Almost surely, 2^16400326 is an apocalyptic number.

16400326 is a deficient number, since it is larger than the sum of its proper divisors (8537378).

16400326 is a wasteful number, since it uses less digits than its factorization.

16400326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112406.

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

The square root of 16400326 is about 4049.7315960444. The cubic root of 16400326 is about 254.0685019942.

Adding to 16400326 its reverse (62300461), we get a palindrome (78700787).

The spelling of 16400326 in words is "sixteen million, four hundred thousand, three hundred twenty-six".