16920242 has 16 divisors (see below), whose sum is σ = 26138112. Its totient is φ = 8210160.

The previous prime is 16920221. The next prime is 16920251. The reversal of 16920242 is 24202961.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15023 + ... + 16109.

It is an arithmetic number, because the mean of its divisors is an integer number (1633632).

Almost surely, 2^16920242 is an apocalyptic number.

16920242 is a deficient number, since it is larger than the sum of its proper divisors (9217870).

16920242 is a wasteful number, since it uses less digits than its factorization.

16920242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 16920242 is about 4113.4221762421. The cubic root of 16920242 is about 256.7254103656.

The spelling of 16920242 in words is "sixteen million, nine hundred twenty thousand, two hundred forty-two".