16445542 has 8 divisors (see below), whose sum is σ = 25086600. Its totient is φ = 8083344.

The previous prime is 16445521. The next prime is 16445549. The reversal of 16445542 is 24554461.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16445549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69567 + ... + 69802.

It is an arithmetic number, because the mean of its divisors is an integer number (3135825).

Almost surely, 2^16445542 is an apocalyptic number.

16445542 is a deficient number, since it is larger than the sum of its proper divisors (8641058).

16445542 is a wasteful number, since it uses less digits than its factorization.

16445542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139430.

The product of its digits is 19200, while the sum is 31.

The square root of 16445542 is about 4055.3103457072. The cubic root of 16445542 is about 254.3017782519.

The spelling of 16445542 in words is "sixteen million, four hundred forty-five thousand, five hundred forty-two".