16242291 has 24 divisors (see below), whose sum is σ = 26142480. Its totient is φ = 9648576.

The previous prime is 16242277. The next prime is 16242313. The reversal of 16242291 is 19224261.

It is not a de Polignac number, because 16242291 - 2⁶ = 16242227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16242211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1000 + ... + 5786.

It is an arithmetic number, because the mean of its divisors is an integer number (1089270).

Almost surely, 2^16242291 is an apocalyptic number.

16242291 is a deficient number, since it is larger than the sum of its proper divisors (9900189).

16242291 is a wasteful number, since it uses less digits than its factorization.

16242291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4835 (or 4832 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 16242291 is about 4030.1725769500. The cubic root of 16242291 is about 253.2497910511.

The spelling of 16242291 in words is "sixteen million, two hundred forty-two thousand, two hundred ninety-one".