16020478 has 4 divisors (see below), whose sum is σ = 24030720. Its totient is φ = 8010238.

The previous prime is 16020461. The next prime is 16020479. The reversal of 16020478 is 87402061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87402061 = 239 ⋅365699.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16020479) 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 as a sum of consecutive naturals, namely, 4005118 + ... + 4005121.

It is an arithmetic number, because the mean of its divisors is an integer number (6007680).

Almost surely, 2^16020478 is an apocalyptic number.

16020478 is a deficient number, since it is larger than the sum of its proper divisors (8010242).

16020478 is an equidigital number, since it uses as much as digits as its factorization.

16020478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8010241.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 16020478 is about 4002.5589314837. The cubic root of 16020478 is about 252.0916669118.

The spelling of 16020478 in words is "sixteen million, twenty thousand, four hundred seventy-eight".