16642698 has 16 divisors (see below), whose sum is σ = 33337920. Its totient is φ = 5538816.

The previous prime is 16642697. The next prime is 16642699. The reversal of 16642698 is 89624661.

It is an interprime number because it is at equal distance from previous prime (16642697) and next prime (16642699).

It is not an unprimeable number, because it can be changed into a prime (16642697) 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, 2811 + ... + 6417.

It is an arithmetic number, because the mean of its divisors is an integer number (2083620).

Almost surely, 2^16642698 is an apocalyptic number.

16642698 is an abundant number, since it is smaller than the sum of its proper divisors (16695222).

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

16642698 is a wasteful number, since it uses less digits than its factorization.

16642698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381.

The product of its digits is 124416, while the sum is 42.

The square root of 16642698 is about 4079.5462983033. The cubic root of 16642698 is about 255.3139692829.

The spelling of 16642698 in words is "sixteen million, six hundred forty-two thousand, six hundred ninety-eight".