16443402 has 8 divisors (see below), whose sum is σ = 32886816. Its totient is φ = 5481132.

The previous prime is 16443397. The next prime is 16443431. The reversal of 16443402 is 20434461.

16443402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

16443402 is an admirable number.

It is a super-3 number, since 3×16443402³ (a number of 23 digits) contains 333 as substring.

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, 1370278 + ... + 1370289.

It is an arithmetic number, because the mean of its divisors is an integer number (4110852).

Almost surely, 2^16443402 is an apocalyptic number.

16443402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

16443402 is a wasteful number, since it uses less digits than its factorization.

16443402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740572.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 16443402 is about 4055.0464855535. The cubic root of 16443402 is about 254.2907473108.

Adding to 16443402 its reverse (20434461), we get a palindrome (36877863).

The spelling of 16443402 in words is "sixteen million, four hundred forty-three thousand, four hundred two".