16442031 has 8 divisors (see below), whose sum is σ = 22336560. Its totient is φ = 10754432.

The previous prime is 16442029. The next prime is 16442047. The reversal of 16442031 is 13024461.

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

It is a cyclic number.

It is not a de Polignac number, because 16442031 - 2¹ = 16442029 is a prime.

It is a super-3 number, since 3×16442031³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 16441989 and 16442007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16442071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51546 + ... + 51863.

It is an arithmetic number, because the mean of its divisors is an integer number (2792070).

Almost surely, 2^16442031 is an apocalyptic number.

16442031 is a deficient number, since it is larger than the sum of its proper divisors (5894529).

16442031 is a wasteful number, since it uses less digits than its factorization.

16442031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103465.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 16442031 is about 4054.8774334128. The cubic root of 16442031 is about 254.2836797891.

Adding to 16442031 its reverse (13024461), we get a palindrome (29466492).

It can be divided in two parts, 164420 and 31, that added together give a triangular number (164451 = T₅₇₃).

The spelling of 16442031 in words is "sixteen million, four hundred forty-two thousand, thirty-one".