16401446 has 8 divisors (see below), whose sum is σ = 25897080. Its totient is φ = 7769088.

The previous prime is 16401419. The next prime is 16401457. The reversal of 16401446 is 64410461.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215771 + ... + 215846.

It is an arithmetic number, because the mean of its divisors is an integer number (3237135).

Almost surely, 2^16401446 is an apocalyptic number.

16401446 is a deficient number, since it is larger than the sum of its proper divisors (9495634).

16401446 is a wasteful number, since it uses less digits than its factorization.

16401446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431638.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 16401446 is about 4049.8698744528. The cubic root of 16401446 is about 254.0742854208.

The spelling of 16401446 in words is "sixteen million, four hundred one thousand, four hundred forty-six".