16240642 has 8 divisors (see below), whose sum is σ = 26575632. Its totient is φ = 7382100.

The previous prime is 16240639. The next prime is 16240643. The reversal of 16240642 is 24604261.

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

It is not an unprimeable number, because it can be changed into a prime (16240643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 369084 + ... + 369127.

It is an arithmetic number, because the mean of its divisors is an integer number (3321954).

Almost surely, 2^16240642 is an apocalyptic number.

16240642 is a deficient number, since it is larger than the sum of its proper divisors (10334990).

16240642 is a wasteful number, since it uses less digits than its factorization.

16240642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738224.

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

The square root of 16240642 is about 4029.9679899473. The cubic root of 16240642 is about 253.2412203588.

It can be divided in two parts, 162 and 40642, that added together give a palindrome (40804).

The spelling of 16240642 in words is "sixteen million, two hundred forty thousand, six hundred forty-two".