16642042 has 8 divisors (see below), whose sum is σ = 25494336. Its totient is φ = 8143932.

The previous prime is 16642039. The next prime is 16642069. The reversal of 16642042 is 24024661.

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

It is a junction number, because it is equal to n+sod(n) for n = 16641998 and 16642016.

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, 88428 + ... + 88615.

It is an arithmetic number, because the mean of its divisors is an integer number (3186792).

Almost surely, 2^16642042 is an apocalyptic number.

16642042 is a deficient number, since it is larger than the sum of its proper divisors (8852294).

16642042 is a wasteful number, since it uses less digits than its factorization.

16642042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177092.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 16642042 is about 4079.4658964134. The cubic root of 16642042 is about 255.3106146953.

The spelling of 16642042 in words is "sixteen million, six hundred forty-two thousand, forty-two".