16270442 has 4 divisors (see below), whose sum is σ = 24405666. Its totient is φ = 8135220.

The previous prime is 16270433. The next prime is 16270447. The reversal of 16270442 is 24407261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24407261 = 31 ⋅787331.

It can be written as a sum of positive squares in only one way, i.e., 10883401 + 5387041 = 3299^2 + 2321^2 .

It is not an unprimeable number, because it can be changed into a prime (16270447) 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 as a sum of consecutive naturals, namely, 4067609 + ... + 4067612.

Almost surely, 2^16270442 is an apocalyptic number.

16270442 is a deficient number, since it is larger than the sum of its proper divisors (8135224).

16270442 is an equidigital number, since it uses as much as digits as its factorization.

16270442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8135223.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 16270442 is about 4033.6635952940. The cubic root of 16270442 is about 253.3960167294.

The spelling of 16270442 in words is "sixteen million, two hundred seventy thousand, four hundred forty-two".