16442698 has 4 divisors (see below), whose sum is σ = 24664050. Its totient is φ = 8221348.

The previous prime is 16442693. The next prime is 16442711. The reversal of 16442698 is 89624461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 89624461 = 967 ⋅92683.

It can be written as a sum of positive squares in only one way, i.e., 12020089 + 4422609 = 3467^2 + 2103^2 .

It is a super-3 number, since 3×16442698³ (a number of 23 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16442698.

It is not an unprimeable number, because it can be changed into a prime (16442693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110673 + ... + 4110676.

Almost surely, 2^16442698 is an apocalyptic number.

16442698 is a deficient number, since it is larger than the sum of its proper divisors (8221352).

16442698 is an equidigital number, since it uses as much as digits as its factorization.

16442698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8221351.

The product of its digits is 82944, while the sum is 40.

The square root of 16442698 is about 4054.9596792077. The cubic root of 16442698 is about 254.2871182313.

The spelling of 16442698 in words is "sixteen million, four hundred forty-two thousand, six hundred ninety-eight".